The AS50 is a semi-automatic .50 BMG anti-material precision rifle manufactured by British firearms producer Accuracy International.
It enables operators to engage targets at very long range with high accuracy using explosive or incendiary ammunition, and employs a gas operated semi-automatic action and muzzle brake, allowing for lower recoil than the AW50 bolt-action rifle and faster target acquisition.
[1] The AS50 is designed for the British Armed Forces and United States Navy SEALs, the rifle is employed due to its high rate of fire (five rounds in 1.6 seconds).
The two-part machined steel receiver features an integral accessory rail for mounting optical sights.
[citation needed] The AS50 weighs 14.1 kilograms (31 lb) empty and holds five rounds of .50 BMG in a single-stack, removable box magazine.