Bushmaster's ACR (Adaptive Combat Rifle) has been updated to take on new challenges, improving on functionality and modularity. With tool-less disassembly allowing quick caliber change options, the ACR is one of the most field adaptable MSR platforms. The AR Pistol configuration has QD sling mount reciever endplate, and an optic-ready AAC Square Drop modular handguard system which accepts KeyMod type accessories. This updated ACR has an FNC-treated 4150 CMV steel barrel, fully ambidextrous controls, and features a full time ambidextrous charging handle. This AR Pistol in 5.56 NATO has a black finish, 10.5" barrel with an AAC Blackout flash hider allowing rapid attachment of AAC silencers, and includes a 30-round Pmag.
Brand Bushmaster
Category Tactical Rifles
Caliber 223 Remington / 5.56 NATO
Model ACR
Series AR Pistol
Type AR Pistol
Action Semi-Automatic
Sights None, Optic Ready
Capacity 30+1
Grips Black Polymer
Metal Finish Black Melonite
Safety Manual
Barrel Length 10.5"
Caliber Dictionary
The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.
The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles. — Craig Boddington
