Beretta 92G-SD/96G-SD: Difference between revisions
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The '''Beretta 92G-SD (similar to [[Beretta 96G-SD|96G-SD]] Special Duty''') is a [[semi-automatic]], recoil operated, double action [[pistol]], with the addition of the tactical equipment rail, chambered for the 9 mm cartridge, designed and manufactured by [[Beretta]]. |
The '''Beretta 92G-SD (similar to [[Beretta 96G-SD|96G-SD]] Special Duty''') is a [[semi-automatic]], locked-breech delayed recoil operated, double action [[pistol]], with the addition of the tactical equipment rail, chambered for the 9 mm cartridge, designed and manufactured by [[Beretta]]. |
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[[Image:92G-SD.jpg|center|400px|92/96G-SD]] |
[[Image:92G-SD.jpg|center|400px|92/96G-SD]] |
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== Operation == |
== Operation == |
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Upon discharge, the pressures created by the expanding gases actuates the slide-barrel assembly in the following manner: after traveling rearward a small distance , the locking block stops the rearward movement of the barrel |
Upon discharge, the pressures created by the expanding gases actuates the slide-barrel assembly in the following manner: after traveling rearward a small distance , the locking block stops the rearward movement of the barrel and releases the slide, which continues its rearward movement. The slide then extracts and ejects the spent cartridge case while compressing the recoil spring (positioned horizontally, directly below the barrel between the parallel guides of the receiver), and simultaneously cocks the hammer. The magazine spring forces the next cartridge up into line. At the apex of the recoil stroke the recoil spring acts to reverse the direction of the slide, chambering a fresh cartridge. |
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Revision as of 19:26, 29 December 2004
The Beretta 92G-SD (similar to 96G-SD Special Duty) is a semi-automatic, locked-breech delayed recoil operated, double action pistol, with the addition of the tactical equipment rail, chambered for the 9 mm cartridge, designed and manufactured by Beretta.
History
First appearing in 2001, the Beretta 92G-SD model was designed for law enforcement/special operations use.
Operation
Upon discharge, the pressures created by the expanding gases actuates the slide-barrel assembly in the following manner: after traveling rearward a small distance , the locking block stops the rearward movement of the barrel and releases the slide, which continues its rearward movement. The slide then extracts and ejects the spent cartridge case while compressing the recoil spring (positioned horizontally, directly below the barrel between the parallel guides of the receiver), and simultaneously cocks the hammer. The magazine spring forces the next cartridge up into line. At the apex of the recoil stroke the recoil spring acts to reverse the direction of the slide, chambering a fresh cartridge.
Specifications
Similar to a Beretta 92FS Brigadier and fitted with its heavy slide that has removable front and rear night sights. Because of the heavier slide, the gun’s balance is enhanced and felt recoil is reduced, improving accuracy for follow-up shots.
The trigger spring has bends on both ends, so if it breaks in the field, it can be taken out, put it in "backwards". It acts as its own spare spring.
The Beretta 92G-SD is fitted only with a decocking device (no safety), which lowers the hammer without causing an accidental discharge. The pistol is ready to fire at all times. the 92G-SD uses a frame based on the standard Beretta 92FS frame with the addition of the tactical equipment Weaver rail mount.
Ambidextrous Manual Decocking Lever. Accessible by the thumb of a right- or left-handed shooter, it is spring loaded. When pushed down, the rear part of the firing pin (striker) is rotated out of alignment with the front part of the firing pin.
Automatic Firing Pin Block. The front part of the firing pin is blocked from any forward movement until the trigger is pulled completely back. Even if the pistol falls and strikes the ground, muzzle-down, the firing pin will not strike the primer.
Checkered Grip. The front and back of the grip strap are checkered (25 per inch), whereas the 92FS is serated. The grip frame is flared slightly at the base to enhance pointability and control.
Extended/Reversible Magazine Release Button. Positioned next to the trigger guard for either right- or left-handed shooters. Allows rapid reloading. Magazine drops clear when released.
Double and Single Action. 92G pistols fire double action on the first round and single action on the subsequent rounds. Squeezing the trigger will cock and trip the hammer, firing the pistol. After the initial shot the pistol will continually fire in single action. The longer, heavier trigger pull of the double action makes inadvertent discharge less likely, while the lighter, shorter single action trigger pull allows faster, more precise discharge of subsequent rounds.
The ejector of the 92G-SD has an angle cut into it to eject the empty brass to the right side of the gun.
Chamber-loaded indicator. The chamber-loaded indicator is visible or can be felt by touch.
Disassembly Latch. Located to simplify field stripping and maintenance, the latch makes the 92G-SD an easy gun to disassemble.
Finish. The exterior finish is called Bruniton which is an exclusive Beretta corrosion resistant non-glare matte finish.
Open Slide Design. The primary role of the open-top slide is to provide a 180° ejection port. Open top slide virtually eliminates jamming or stovepiping. The slide retention device, which causes the slide and barrel assembly to remain open after the last cartridge has been fired and ejected, allows the user to load the chamber one cartridge at a time (emergency tactical loading) should the magazine be lost or damaged. The pistols were designed so that the extractor will not be damaged by direct chamber loading. These models operate on the short recoil, delayed locking block system, which yields a faster cycle time.
Plastic parts. Guide Rod, Hammer Spring Cap (w or w/o lanyard), Trigger, Hammer (metal internals), Magazine Release, Take Down Lever, Mag Base.
Intended market
The Beretta 92G-SD was designed for elite police forces that require a high quality special duty pistol that can be fitted with a tactical light or laser, but has also found a market in the home protection area.
Design advantages
The Beretta 92G-SD with its slide mounted decocking lever is quick into action, but somewhat less safe then a Beretta 92FS during unloading. The added advantages of night sights and an equipment rail make it an attractive home protection/law enforcement pistol. The barrel is made of stainless steel to protect it from wear and corrosion.
Limitations
The Beretta 92G-SD has similar limitations as the Beretta 92FS. It is not well suited for use in deserts, jungles and arctic areas. While it will perform quite well in such harsh environments, any negligence in spring maintenance and cleaning will reduce its reliability. The Bruniton finish applied on the Beretta 92G-SD wears down quickly which leads to corrosion and more slide to frame play.
Technical Data
- Type: Beretta 92G-SD
- Trigger system: Double/Single action
- Trigger Pull: Single Action: 4.0 to 6.4 lbs Double Action: 9.9 to 16.1 lbs
- Caliber: 9 mm x 19mm NATO
- Locking system: falling locking block
- Capacity: 10-15-17 rounds depending on magazine (staggered)
- Frame material: Aircraft quality aluminium alloy
- Slide material: Carbon steel
- Grip panels: Plastic, checkered
- Barrel length: 125 mm (4.9 in)
- Barrel material: Stainless steel
- Sights: Removable Trijicon 3-dot pressurized tritium gas, self-luminous iron sight
- Rifling: R.H, 6 groove, pitch 250 mm (approx 1 turn in 10 in.)
- Maximum effective range: 50 meters (54.7 yards)
- Maximum range: 1800 meters (1969.2 yards)
- Muzzle velocity: 375 meters/sec (1230.3 ft/sec)
- Muzzle energy: 569.5 newton meters (420 ft lbs)
- Overall Length: 217 mm (8.5 in)
- Overall Height: 140 mm (5.5 in)
- Overall Width: 39 mm (1.3 in)
- Sight Radius: 160 mm (6.3 in)
- Mass Unloaded: 1010 g (35.3 oz)
- Safeties: Slide mounted decocking levers. Loaded chamber indicator. Firing-pin safety. Slide retention device.
- Magazine release: Lower trigger guard, extended, reversible.
- Production years: 2002 - present day.
- Production location: Beretta USA