Accuracy International AS50

The AS50 is a semi-automatic .50 BMG anti-materiel 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. The rifle is highly transportable, ergonomic and lightweight. It can be disassembled in less than three minutes and serviced without tools.

Accuracy International AS50
Ai as50.png
TypeAnti-materiel precision rifle
Place of originUnited Kingdom
Production history
Mass27 lb (12.2 kg) (no scope/sight, empty mag)
Length53.9" (1369 mm)
Barrel length692 mm

Cartridge.50 BMG
ActionGas operation, direct impingement[citation needed]
Rate of firesemi-automatic, estimated at 5 rounds/1.6 seconds
Effective firing range1,800 m[1][2]
Feed system5 or 10-round detachable box magazine
Accuracy International rifles

AI Arctic Warfare
AI AW Police
AI AW Magnum
AI AW50 (.50 BMG)
AI AX50 (.50 BMG)
AI AS50 (Semi-auto .50 BMG)
Australian AW50F
Swedish Psg 90

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). This high rate of fire is due mostly to the floating barrel and the lightweight titanium frame.[3]

The rifle has an accuracy of 1.5 MOA. The barrel is free-floating. The two-part machined steel receiver features an integral accessory rail for mounting optical sights. Two additional rails are mounted on the sides of the short barrel shroud. An adjustable bipod and rear support leg/hand grip allow for stable shooting. This weapon can accurately engage targets at a range of 1,500 metres (1,600 yd).[1][2]

The AS50 weighs 14.1 kilograms (31 lb) empty and holds five rounds of .50 BMG in a single-stack, removable box magazine.

See alsoEdit

  • OSV-96 Russian counterpart.
  • Barrett M82, another semi-automatic .50 BMG sniper rifle.


  1. ^ a b "AW50 Information". Archived from the original on 1 December 2009. Retrieved 29 October 2009.
  2. ^ a b "Accuracy International AW50 Information". Archived from the original on 24 July 2010. Retrieved 29 October 2009.
  3. ^ "Ultimate Weapons AS-50". Military Channel. Archived from the original on 10 November 2012. Retrieved 25 April 2013.

External linksEdit