DSR-Precision DSR-1
| AMP Technical Services DSR-1 | |
|---|---|
| Type | Bolt action rifle |
| Place of origin | Germany |
| Service history | |
| Used by | GSG 9, PASKAU |
| Specifications | |
| Mass | 5.9 kg (unloaded, without scope) |
| Length | 990 mm |
| Barrel length | 25.59 in (650 mm) |
| Cartridge | 5.56 × 45 mm NATO (.223 Remington), 7.62 × 51 mm NATO (.308 Winchester), .300 Win Mag, .338 Lapua Magnum |
| Caliber | 5.56 mm NATO (.223Rem), 7.62 mm NATO (.308Win), .300 Win Mag, .338 Lapua Mag |
| Action | Bolt-action |
| Feed system | 5 (.308) or 4 (.300WM and .338LM) rounds detachable box magazines |
The DSR-1 rifle is designed and manufactured by the German company AMP Technical Services as a specialised police sniper rifle. This rifle evolved from the now discontinued ERMA SR-100 sniper rifle. It has been adopted by the German GSG 9 counter-terrorist unit, as well as by other European special police units and agencies.
The DSR-1 is configured in a bull-pup design, with a free-floating barrel. The folding bipod is mounted onto upper rails (above the barrel), and the ajustable horisontal front grip is mounted on the lower rails (under the barrel). The rifle features a fully ajustable buttsock and cheekpiece. The holder for a spare magazine is installed in the front of the triggerguard to decrease reloading time. The DSR-1 action features match-grade, fluted barrel that is quickly interchangeable and is fixed into receiver by three screws. The bolt features six lugs that lock directly into the barrel. The barrel is protected by a ventilated aluminium handguard and is fitted with a muzzle brake (which is very useful when firing full-power, magnum loads). The trigger is two-stage and ajustable. The DSR-1 features a manual, ambidextrous three position safety, located above the triggerguard.
The expected accuracy of the DSR-1 is high: some sources state sub 0.2 MOA accuracy (0.20 inch / 5 mm groups measured center-to-center at 100 yards) with match-grade ammunition and favorable environmental conditions.