Physical
The physical qualities of the ArmaLite / Colt AR-15. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
508 mm
20.00 in
Barrel Length
6.61 lb
3.00 kg
Weight
Rotating Bolt / Direct Impingement System
Action
5.5645mm NATO; .223 Remington; .45 ACP; 5.7x28mm; 6.5mm Grendel; 6.8mm Remington SPC
Caliber(s)
20-, 30-, 40-, 45-, 90- or 100-round magazines
Feed
Adjustable front and rear; optional optics
Sights