include the Ontario Provincial Police Tactics and Rescue Unit. New ArmaLite AR-10A series After introducing the AR-10B model in 1996 which switched from the original pattern magazines to modified M14 magazines, ArmaLite reintroduced their original magazine pattern with their new AR-10A model in 2012 (also called SR-25 pattern magazine). Alternative calibers ArmaLite offers numerous other chamberings for the AR10 including: .243 Winchester, .260 Remington, 6.5mm Creedmoor, 7mm-08 Remington, and .338 Federal. Manufacturers of these barrels include Ballistic Advantage, Wilson Combat, and DPMS Panther Arms. Other .308/7.62x51 caliber ArmaLite type rifles While ArmaLite Inc. holds a US trademark on the name "AR-10", other rifle manufacturers currently produce 7.62×51mm NATO auto-loading rifles that are based generally on the AR-10 design. These rifles differ from both the current and original ArmaLite AR10 in a few minor dimensions that make the ArmaLite AR10B not as modular as the rest of the AR-based firearms. Some of these companies offer selective-fire versions and versions in different calibers. DPMS LR-308 Knights Armament Corporation SR-25 Knights Armament Corporation M110 Semi-Automatic Sniper System Rock River Arms LAR-8 Lewis Machine and Tool LM308MWS Bushmaster MOE 16 .308 Daniel Defense DD5 Palmetto State Armory PA-10 SIG Sauer 716i Smith & Wesson M&P10 Colt Canada C20 DMR AR-10 purchasers by country This list denotes purchasers of ArmaLite Rifles produced by ArmaLite and its licensees from 1956-1960, not necessarily later variants or designs. Used by SWAT of Bangladesh Police - AR-10A4 variant used by BOPE of Military Police of Rio de Janeiro State and by CORE of Civil Police of Rio de Janeiro State. Armalite SuperSASS used by CORE - evaluation only, in 1958 : Bought in 1960s - Purchased 2500 rifles from the A.I. factory, delivery October 1958 - Purchased 135 rifles from the A.I. factory, delivery August 1958 Non-state user KLM Royal Dutch Airlines - Purchased a few AR-10s as part of an Arctic survival kit carried on transpolar flights to stop large predators, including polar bears. See also AR-15 style rifle Comparison of the AK-47 and M16 List of ArmaLite rifles List of battle rifles List of AR platform cartridges References External links Armalite home page AR10 promotional video AR-10 model overview 7.62×51mm NATO battle rifles ArmaLite AR-10 derivatives Rifles of the United States Weapons and ammunition introduced in 1958