M1 carbine: Difference between revisions
mNo edit summary |
|||
| Line 139: | Line 139: | ||
*[[Norway]] (Used by the Norwegian Army 1951-70, as well as with some Norwegian police units until the 1990s) |
*[[Norway]] (Used by the Norwegian Army 1951-70, as well as with some Norwegian police units until the 1990s) |
||
*[[Republic of Korea]] (1950s-Present (For Reserve Force)) |
*[[Republic of Korea]] (1950s-Present (For Reserve Force)) |
||
*[[Mexico]] (still in service with police departments & security forces across the country) |
|||
==Current production== |
==Current production== |
||
Revision as of 07:42, 25 December 2007
| Carbine, Caliber .30, M1 | |
|---|---|
 M1 Carbine | |
| Type | Carbine |
| Place of origin |  United States |
| Service history | |
| In service | July 1942–1960s (U.S.) |
| Used by | U.S. and Allies, Israel, Norway, South Vietnam, Brazil. South Korea |
| Wars | WWII, Korean War, Vietnam War |
| Production history | |
| Designed | 1938–1941 |
| Manufacturer | Military: Winchester, Inland, Underwood, IBM, Saginaw Gear, Rock-Ola, Quality Hardware, Standard Products, National Postal Meter, Irwin-Pedersen; Commerical: National Ordnance, Iver Johnson, Universal, Auto-Ordnance (Kahr Arms), and others |
| Produced | September 1941 – August 1945; Commerical 1945-present |
| No. built | Over 6.25 million |
| Variants | M1A1, M1A3, M2, M3 |
| Specifications | |
| Mass | 5.2 lb (2.36 kg) empty |
| Length | 35.6 in (904 mm) |
| Barrel length | 18 in (458 mm) |
| Cartridge | .30 Carbine |
| Action | Gas-operated, rotating bolt |
| Rate of fire | Semi-automatic (M1/A1); 850–900 round/min (M2/M3) |
| Muzzle velocity | 1,970 ft/s (600 m/s) |
| Feed system | 15- or 30-round detachable box magazine |
The M1 Carbine (formally the United States Carbine, Caliber .30, M1) is a lightweight semi-automatic carbine that became a standard firearm in the U.S. military during World War II and the Korean War, and was produced in several variants. It was widely used by U.S. and foreign military and paramilitary forces, and has also been a popular civilian firearm.
In selective fire versions capable of fully-automatic fire, the carbine is designated the M2 Carbine. The M3 Carbine was an M2 with an active infrared scope system.
History
The United States Army's M1 Garand rifle was originally developed to chamber a lighter .276 round, but this design feature was canceled in the early 1930s. The M1 rifle would eventually be chambered for the same powerful .30-06 Springfield standard round used in other service weapons of the time, such as the Springfield M1903, the BAR, and the M1917/M1919 machine guns. This left the Army without the lighter, handier rifle it had wanted. This, along with lessons learned during earlier wars, observations of conflicts during the 1930s, and dissatisfaction with existing submachine guns and rifles contributed to the development of the M1 Carbine.
Troops in the rear, paratroopers, or front line troops required to carry other equipment (such as medics and engineers) had found the older full-size rifles too cumbersome, and pistols and revolvers to be insufficiently accurate or powerful. Submachine guns like the Thompson were more than sufficiently powerful for close range encounters, but lacked effective range and were not significantly easier to carry and maintain than the existing service rifles (such as the M1903 and Garand).
Much the same constraints applied to airborne infantry, a concept that was also under consideration at the time. Prior to the development and issue of submachine guns such as the M3 "Grease Gun", a submachine gun like the Thompson was also much more expensive than pistols and most rifles of the period. The .30-06 Garand, then entering service, was as heavy and cumbersome as the existing service rifles. It was decided that a new weapon was needed for these other roles. While the range of a pistol is about 50 yards (45 m) and the range of existing rifles was several hundred yards, the requirement for the new firearm called for a maximum range of 300 yards (275 m).
A carbine version of the standard-issue semi-automatic rifle was considered, but the .30-06 round for which the M1 Garand was chambered was found to be too powerful. The requirement was for a weapon lighter and handier than the Garand, with less recoil, but at the same time, greater range, accuracy, and effective stopping power than the M1911A1 pistols currently in use. The M1 Carbine was intended for use by soldiers who required a more compact, lightweight defensive weapon, and for soldiers who did not utilize an infantry rifle as their primary arm.
In 1938, the Chief of Infantry requested the Ordnance Department develop a lightweight rifle or carbine, though the formal requirement for the weapon type was not approved until 1940. This led to a competition in 1941 by major U.S. firearm companies and designers. Winchester at first did not submit a design, being too busy perfecting the Winchester Military Rifle in .30-06. The rifle originated as a design by Jonathan "Ed" Browning, half-brother of the famous weapons designer John Browning. A couple of months after Ed Browning's death in May 1939, Winchester hired ex-convict David M. "Carbine" Williams, a some-time bootlegger who had devised a short-stroke gas piston design while serving a prison sentence for murder. (This unlikely true story, a natural for the movie industry, was the basis of the 1952 movie Carbine Williams starring James Stewart.) Winchester hoped Williams would be able to complete various designs left unfinished by Ed Browning. Williams' first design change for the rifle was the incorporation of his short-stroke piston design. After the Marine Corps semi-automatic rifle trials in 1940, Browning's rear-locking tilting bolt design was considered to be unreliable in sandy conditions. As a result, the rifle was redesigned yet again to incorporate a Garand-style rotating bolt and operating rod.
The prototypes for the US M1 carbine were chambered for a new cartridge, the .30 M1. It chambers the .30 Carbine, a smaller and lighter .30 caliber (7.62 mm) cartridge, very different, in both design and performance, from the larger .30-'06 used in the Garand.
The .30 Carbine cartridge was intermediate in both muzzle energy (ME) and muzzle velocity (MV). It is essentially a rimless version of the obsolete .32 Winchester Self-Loading cartridge. The .30 Carbine had a round-nose 110-grain bullet, in contrast to the spitzer bullet designs found in most full-power rifle cartridges of the day. From the M1 Carbine's 18-inch (46 cm) barrel, the .30 Carbine cartridge produced a muzzle velocity of approximately 580 to 600 m/s (1,900 to 1,970 ft/s), a velocity between that of contemporary submachine guns (approximately 280 to 490 m/s or 920 to 1,600 ft/s) and full-power rifles and light machine guns (approximately 740 to 855 m/s or 2,400 to 2,800 ft/s). For example, the U.S. M3 submachinegun, chambered in .45 ACP, had a MV of 281 m/s (920 ft/s); the British Bren light machine gun in .303 British had a MV 744 m/s (2,440 ft/s); the M1 Garand firing .30-'06 had a MV of 853 m/s (2,800 ft/s). At the M1 Carbine's maximum listed range of 300 yards, its bullet has about the same energy as pistol rounds like the 7mm Nambu do at the muzzle. Bullet drop is significant past 200 yards.
By May 1941, the rifle prototype had been shaved to a mere 7.5 pounds (3.4 kg). Winchester contacted the Ordnance Department to examine their design, who believed the design could be scaled down to a carbine which weighed 4.5 to 4.75 pounds (2.0 to 2.2 kg). In response, Major René Studler demanded a carbine prototype as soon as possible. The first model was developed in 13 days by William C. Roemer and Fred Humeston. It was cobbled together using the trigger housing and lockwork of a Winchester M1905 rifle. The prototype was an immediate hit with Army observers.
After the initial Army testing in August 1941, Winchester set out to develop a more refined version. This competed successfully against other carbine candidates in September 1941, and Winchester was notified of their victory the very next month. Standardization as the M1 Carbine was approved in October 22, 1941. Contrary to popular myth, Williams had little to do with the carbine's development, with the exception of his short-stroke gas piston design. As a matter of fact, Williams went about creating his own design apart from the other Winchester staff. Williams' final carbine design was not ready for testing until December 1941, two months after the Winchester M1 Carbine had been adopted and type-classified. None of William's additional design features were incorporated into later M1 production.
The M1 carbine was designed primarily to offer non-combat and line-of-communications troops a better defensive weapon than a pistol or submachine gun, with greater accuracy and range, but without the recoil, cost, or weight of a full-power infantry rifle. The carbine was also easier for less experienced soldiers and smaller-framed people to fire than the .30 caliber infantry rifles of the day. The carbine was more convenient to carry for officers, NCOs, or specialists encumbered with weapons, field glasses, radios, or other gear. Tankers, drivers, artillery crews, mortar crews, and other personnel were also issued the M1 carbine in lieu of the larger, heavier Garand. Belatedly, a folding-stock version of the M1 carbine was developed, after a request was made for a compact and light infantry arm for airborne troops. The first M1 carbines were delivered in mid-1942, with initial priority given to troops in the European Theater.
The M1 and its reduced-power .30 cartridge were never intended to serve as a primary infantry weapon, nor was it comparable to more powerful assault rifles developed late in the war. Nevertheless, the carbine was soon issued to infantry officers, machine-gun crews, paratroopers, and other frontline soldiers. Its reputation in combat was mixed. Some infantrymen and Marines, especially those who did not use a rifle as their primary weapon, preferred the carbine over the Garand because of the weapon's small size and light weight. The carbine also gained generally high praise from airborne troops who were issued the folding-stock M1A1. The carbine's exclusive use of non-corrosive primered ammunition was found to be a godsend by troops and ordnance personnel serving in the Pacific, where barrel corrosion was a significant issue, though not to the same extent in Europe, where some soldiers reported misfires attributed to bad primers.
In the Pacific theatre, soldiers and guerrilla forces operating in heavy jungle with only occasional enemy contact generally praised the carbine for its light weight and accuracy. Other soldiers and Marines engaged in frequent daily combat (particularly those serving in the Philippines) found the weapon to have insufficient stopping power and penetration. Reports of Japanese soldiers being shot multiple times in chest and body without immediate effect began to surface. Like the .45 Thompson, some troops found the .30 Carbine cartridge incapable of penetrating small trees and other light jungle cover. Aware of these shortcomings, the U.S. Army, its Pacific Command Ordnance staff, and the Aberdeen small arms facility continued to work on shortened versions of the Garand throughout the war, though none were ever officially adopted.
Initially, the M1 Carbine was intended to have a selective-fire capability, but the decision was made to put the M1 into production without this feature. Fully-automatic capability was incorporated into the design of the M2 (an improved, selective-fire version of the M1), introduced in 1944.
The M2 Carbine continued in use during the Korean War. As noted, the M2 featured a selective-fire switch allowing optional fully-automatic fire at a rather high rate (850-900 rpm) and a 30-round magazine. In Korea, all versions of the M1/M2 carbine soon acquired a poor reputation for jamming in extreme cold weather conditions, eventually traced to inadequate recoil impulse and weak return springs. A 1951 official U.S. Army evaluation noted the weapon's cold-weather shortcomings, and recorded complaints by troops for failure to stop heavily-clothed North Korean and Chinese troops at close range after multiple hits.
The M2 carbine was again issued to some U.S. troops in Vietnam, particularly reconnaissance units (LRRP) and advisors as a substitute standard weapon. These weapons began to be replaced by the M16 in the late 1960s, and many M1, M2, and M3 Carbines were given to the South Vietnamese.
The M1/M2 carbine was finally replaced by the M16 in the mid-1960s, though it continued to be used as a civilian firearm. The M1/M2/M3 carbines were the most heavily produced family of U.S. military weapons for several decades, most of these being the M1 version.
Performance
The M1 carbine bolt mechanism is similar to the M1 Garand rifle, though the carbine has a different gas system and trigger mechanism design. The gas system is a lightweight tappet-and-slide gas system. Initially fed from a 15 round magazine, a 30 round magazine was introduced for the M2.
One characteristic of .30 Carbine ammunition is that from the beginning of production, non-corrosive primers were specified. This was the first major use of this type of primers in a military firearm. Because the rifle had a closed gas system, not normally disassembled, corrosive primers would have led to a rapid deterioration of the gas system. The use of non-corrosive primers was a novelty to service ammunition at this time. Some misfires were reported in early lots of .30 M1 carbine ammunition, attributed to moisture ingress of the non-corrosive primer compound.
The very first carbines, those made before mid-1943, were originally equipped with a "V-cut" extractor for removal of the fired round from the chamber. The "V-cut" design was found to be flawed and unreliable. In the field "V-cut" extractors were reground to a straight configuration, which enhanced reliability, until factory production was able to supply the better design.
Reports of insufficient power have been reported with the M1 carbine during its period of military service, though the carbine was not designed for offensive use. The M1 had a high practical rate of fire. This, and its light weight, compactness, and low recoil, made it a convenient self-defense weapon. With a much-reduced kick compared to the Garand, a soldier would be able to fire multiple aimed shots more rapidly.
The .30 Carbine round is typically a 110 grain (7.1 grams) bullet with a muzzle velocity of 1,900 ft/s, (580 m/s) giving it 880 foot-pounds (1,190 joules) of energy. In comparison, a .357 Magnum revolver fires the same weight bullet at about 1,300 ft/s (396 m/s) for about 410 foot-pounds (560 J) of energy, though the .357 is of larger diameter, and often equipped with a soft-nose or hollowpoint bullet. (Reference: Winchester Ammunition). Nevertheless, reports of the carbine's failure to stop enemy soldiers continue to figure in individual after-action reports, postwar evaluations, and service histories of the U.S. Army and Marine Corps. Recent evaluations of the .30 Carbine cartridge indicate it is in fact an effective penetrator. [1]
Later analysis of negative reports about the carbine and its round have postulated many failures to stop were in fact due to rounds failing to actually hit the target. Early versions of the carbine had poor sights, and when fired, the ammunition loses considerable lethality after 200 yards. However, with improved sights and used within the limitations of the cartridge, the carbine became a much more formidable weapon.
Categorizing the M1 carbine series has been the subject of much debate. The M1 is sufficiently accurate at short ranges. At 100 yards, it can deliver groups of between 3 and 5 minutes of angle, sufficient for its intended purpose as a close-range defensive weapon. Its muzzle energy and range are beyond those of any submachine gun of the period, though its bullet is much lighter in weight and smaller in diameter than .45 caliber weapons, and much less powerful than those of other service rifles of the period.
The classification of the M2 and M3 is also a controversial subject. The M1 and later M2 carbine was never designed to be an assault rifle, in league with the later German StG44 and Russian AK-47, and the .30 Carbine gives up significant muzzle velocity (roughly 350 ft/s or 100 m/s) to both. Additionally, the bullets used in the cartridges of the AK-47 and StG44 are spitzer designs, and suffer less energy loss and trajectory drop at distances beyond 100 yards. Most authorities list the effective combat range of the M1 Carbine at around 200 yards, compared to 250-300 yards for the AK-47 and StG44.
Attachments
The M1 carbine was used with the M8 grenade launcher, which was fired with the M6 cartridge. It also accepts the M4 bayonet, which formed the basis for the later M6 and M7 bayonet-knives.
During World War II, the T23 flash hider was also developed, which could greatly reduce muzzle flash; it was developed from an earlier model for the Garand.
The M3 carbine was initially used with the M1 sniper scope ("Snooperscope"), which was an active infrared system. Before the M3 carbine and M1 sniper scope were type-classified, they were known as the T3 and T120, respectively. The system continued to be developed, and by the time of the Korean War, it was used with the M3 sniper scope. Eventually, the scopes would be superseded by passive infrared scopes. All the M1 attachments would fade out of U.S. military service during the 1960s, when the M1 carbine would be replaced by the 5.56 mm firearms — the M16 and its carbine variants, such as the XM177/CAR-15. Many of the attachments continued to be used with other countries that also used the M1, such as South Vietnam and Israel. Civilians also bought many surplus attachments.
Production and usage
A total of 6.25 million M1 carbines of various models were manufactured, making it the most produced small arm in American military history. Despite being designed by Winchester, the great majority of these were made by other companies. The largest producer was the Inland division of General Motors, but many others were made by contractors as diverse as IBM, the Underwood typewriter company, and the Rock-Ola jukebox company. Standard Products models were the fewest produced, at a little over 4,000. Many carbines were refurbished at several arsenals after the war, with many parts interchanged from original maker carbines. True untouched war production carbines, therefore, are the most collectible.[2]
The German designation for captured carbines was Selbstladekarabiner 455(a). The "(a)" came from the country name in German; in this case, Amerika.
The SAS used the M1 & M1A1 carbines after 1943. The weapon was taken into use simply because a decision had been taken by Allied authorities to supply .30 caliber weapons from US stocks in the weapons containers dropped to Resistance groups sponsored by an SOE, or later also OSS, organizer, on the assumption the groups so supplied would be operating in areas within the operational boundaries of U.S. forces committed to Operation OVERLORD.[citation needed] They were found to be suited to the kind of operation the two British, two French, and one Belgian Regiment carried out. It was handy enough to parachute with, and, in addition, could be easily stowed in an operational Jeep. Other specialist intelligence collection units, such as 30 Assault Unit sponsored by the Naval Intelligence Division of the British Admiralty, which operated across the entire Allied area of operations, also made use of this weapon.[citation needed]
A variant was produced shortly after WWII by the Japanese manufacturer Howa Machinery, under U.S. supervision. These were issued to all branches of the Japan Self-Defense Forces, and large numbers of them found their way to Southeast Asia during the Vietnam War.
Numerous examples were obtained and used by the Israeli Palmach-based special forces in the 1948 Arab-Israeli War. Because of their compact size and semi-auto capabilities, they were given to reconnaissance companies of the Israeli Defence Forces.
It was also used by police and border guard in Bavaria after WWII and into the 1950s. The carbines were stamped according to the branch they were in service with; for instance, those used by the border guard were stamped "Bundesgrenzschutz". Some of these weapons were modified with different sights, finishes, and sometimes new barrels.
After the Korean War, the carbine was widely exported to U.S. allies and client states (such as South Korea, Taiwan, ROC and other European allies), and was used as a frontline weapon well into the Vietnam era. The M1 carbine was also issued to the Korean and Israeli military and police forces.
Hunting and civilian use
Surplus carbines are popular among firearms enthusiasts in the U.S. and elsewhere. Starting in the mid-1950s, U.S. military surplus M1s were sold through the National Rifle Association for US$20. When surplus stocks began to wane, there was limited civilian production of the carbine by Iver Johnson, Universal (who made some changes in the parts), and then Israel Arms International. This extended production into the 1990s. As of 2004, the M1 carbine was again being manufactured commercially by a subsidiary of Kahr Arms, Auto-Ordnance Company.
The M1 carbine is still in use today by many civilian shooters and police around the world. .30 Carbine is used for a number of types of hunting, including white-tailed deer. It is considered minimally acceptable as a deer cartridge, being essentially the .32 Winchester SL, a cartridge found to be underpowered for the same game and obsolete by 1940. The .30 Carbine cartridge is definitely underpowered for larger North American game such as elk, moose, and bear. Some U.S. states prohibit use of the .30 Carbine round for deer and larger animals due to a lessened chance of killing an animal in a single shot, even with expanding bullets.
The gun's inherent short-range accuracy, combined with a somewhat diminished risk of over-penetration due to its comparatively lightweight round-nose projectile, is considered to be of tactical use in urban areas, where civilians may be on the other side of walls. The bullet is actually about twice as heavy as 5.56 mm NATO bullets, and has an order of magnitude[citation needed] higher penetration than submachine guns, as various ballistic tests confirm.
In 1963, firearms designer and promoter Melvin Johnson introduced a version of the M1 Carbine called the Spitfire, which fired a 5.7 mm (.22 in) wildcat round (also known as the 5.7 mm MMJ or .22 Spitfire).[1] Johnson promoted the smaller caliber and the modified carbine as a survival rifle for jungle or other remote areas. While the concept had some military application when used for this role in the selective-fire M2 Carbine, it was not pursued and few 5.7 mm Spitfire carbines were made.[2]
The Israeli police still uses the M1 Carbine as a standard long gun for non-combat elements and MASHAZ volunteers. During the late 1990s, the police started to issue a Micro Galil variant called the Magal chambered in .30 Carbine, but after extensive problems with various malfunctions, they withdrew the weapon from service in 2001. Today, non-combat police units are equipped with Micro Galils chambered in 5.56mm and M1 and M1A1 carbines.
In Rio de Janeiro, Brazil, a police battalion named BOPE (Batalhão de Operações Policiais Especiais, or "Special Police Operations Battalion") still uses the M1 carbine.
The government of the Philippines still issues M1 carbines (together with M1 Garands, M14s, and M16s) to the Civilian Auxiliary Forces Geographical Unit or (CAFGU) and Civilian Volunteer Organization (CVO). `
Operators summary
- Allies of World War II (1940s)
- Bavaria (1940s–50s, Border Guard)
- Brazil (present, BOPE)
- Greenland (present, police)
- Israel (1945–1957, Israeli Defence Forces; 1970s–present, Israeli Police; 1974–present, MASHAZ)
- Italy (Carabinieri, as of 1992)
- South Vietnam (1960s–70s)
- Taiwan, ROC(Republic of China) (1950's-???)
- United Kingdom (Royal Ulster Constabulary, as of 1992)
- United States (1940s–60s/70s, Armed Forces)
- Norway (Used by the Norwegian Army 1951-70, as well as with some Norwegian police units until the 1990s)
- Republic of Korea (1950s-Present (For Reserve Force))
- Mexico (still in service with police departments & security forces across the country)
Current production
The Auto-Ordnance division of Kahr Arms began production of an M1 carbine replica in 2005. The AOM110W and AOM120W models feature a birch stock and handguard, parkerized receiver and flip style rear sight. The AOM130 and AOM140 models feature American walnut stock and handguard, parkerized receiver, flip style rear sight, flat bolt and a barrel band.
An Israeli arms company called Advanced Combat Systems offers a modernized bullpup variant called Hezi SM-1. The company claimed accuracy of 1.5 MOA at 100 yards.[3]
Variants
Carbine, Cal .30, M1A1
- Folding stock, 15-round magazine
- Paratrooper usage
- About 150,000 produced
Carbine, Cal .30, M1A2
- Proposed variant with improved sight adjustable for windage and elevation
- Not produced, instead new sight incorporated into new production carbines
Carbine, Cal .30, M1A3
- Pantograph stock, 15-round magazine
- Type standardized to replace the M1A1 but may not have been issued.
- Pantograph stock was more rigid than the M1A1's folding stock and folded flush under the fore end.
Carbine, Cal .30, M2
- Early 1945
- The M2 carbine was a selective fire (capable of fully-automatic fire) version and was used with a 30-round magazine
- About 600,000 produced
Carbine, Cal .30, M3
- M2 with mounting (T3 mount) for an early active (infrared) night vision sight.
- An improved version of the M3, with a revised mount and with the infrared spotlight mounted on top of the scope instead of hanging from the barrel, was used in Korea and Vietnam.
- About 3,000 produced.
Related equipment and accessories
Ammunition types
The ammunition used by the military with the carbine include:
- Cartridge, Caliber .30, Carbine, Ball, M1
- Cartridge, Caliber .30, Carbine, Grenade, M6
- Cartridge, Dummy, Caliber .30, Carbine, M13
- Cartridge, Caliber .30, Carbine, Ball, High Pressure Test, M18
- Cartridge, Caliber .30, Carbine, Tracer, M27
Notes
References
- Dunlap, Roy F. Ordnance Went Up Front. The Samworth Press, 1948.
- U.S. Army, Commentary on Infantry and Weapons in Korea 1950-51, 1951
- U.S. Army Catalog of Standard Ordnance Items. Second Edition 1944, Volume III, p.419
- Worrell, Jessica (2003). "Range of a Rifle Bullet". The Physics Factbook.
- Korean War cold weather malfunctions
- Barnes, Frank C., Cartridges of the World, DBI Books Inc., 1975, 1978, 1989.
- Hufnagl, Wolfdieter. U.S.Karabiner M1 Waffe und Zubehör.
Motorbuchverlag, 1994.
External links
- US Army M1 Carbine Technical Manual
- M1 Carbine Article
- M1 Carbine Family: M1, M1A1, M2, M3
- The M1/M2 Carbine Magazine FAQ
- Auto-Ordnance M1 Carbines
- 90th Reference manual page including FM 23-7 Carbine, 1942 manual
- Articles page including information on blank adapting the M1 carbine
- M1 Carbine page at Modern Firearms