Accuracy International AS50
Accuracy International · Sniper Rifle · Limited Production · 2007
Also known as: AS50
Overview
The Accuracy International AS50 is a semi-automatic anti-materiel rifle chambered in .50 BMG, designed specifically for special operations forces requiring rapid engagement capability against hard targets. Unlike traditional bolt-action .50 caliber rifles, the AS50's gas-operated semi-automatic action allows a trained operator to fire five aimed rounds in under 1.6 seconds, providing an unprecedented volume of heavy-caliber precision fire. The rifle can be disassembled into two main sections in less than three minutes without tools for ease of transport.
Specifications
| Weight (empty) | 14100 g (497.4 oz) |
| Weight (loaded) | 14800 g (522.1 oz) |
| Overall Length | 1369 mm (53.90") |
| Barrel Length | 692 mm (27.24") |
| Action Type | Gas Operated |
| Firing Mechanism | Rotating Bolt |
| Trigger Type | Single Stage |
| Magazine Capacity | 5 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 853 m/s (2799 fps) |
| Muzzle Energy | 18000 J (13276 ft·lbf) |
| Effective Range | 1800 m (1968 yd) |
| Maximum Range | 4000 m (4374 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 381 mm (15.00") |
| Number of Grooves | 8 |
| Frame Material | Steel |
| Barrel Material | Steel |
| Stock Material | Aluminum Alloy |
| Finish | Matte Black |
Calibers
- 12.7x99mm NATO · primary · 12.7x99mm NATO — also known as .50 BMG, .50 Browning Machine Gun, 12.7x99mm, .50 caliber
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Manual Safety
- Features: Muzzle Brake, Bipod, Picatinny Rail, Free Floating Barrel, Quick Disassembly, Thumb Operated Safety, Rear Monopod
Service history
Operators
- United States Navy SEALs · adopted 2007 · as AS50
- British Special Forces
Conflicts
- War in Afghanistan (2001-2021)
- War on Terror (2001-present)
Production
Production years: 2007-present
Limited production primarily for special operations customers. Exact numbers not publicly disclosed.
Origin
Country of origin: United Kingdom
Notes
The AS50 was developed specifically for the US Navy SEALs, who required a semi-automatic .50 BMG platform lighter than the Barrett M82. The gas-operated action uses a dual-piston system to manage the massive forces of the .50 BMG cartridge. The rifle features an integral thumb-operated safety and a large muzzle brake that reduces felt recoil by approximately 50 percent. The quick-disassembly feature allows the rifle to be broken down into two manageable sections for covert transport.
Background
The AS50 was developed in response to a US Navy SEAL requirement for a semi-automatic .50 BMG rifle that could engage multiple targets rapidly while being lighter than the Barrett M82. Its ability to fire five rounds in under 1.6 seconds makes it one of the fastest-firing .50 caliber rifles in the world, and its tool-free disassembly into two sections was specifically designed for covert insertion operations.