The ArmaLite M-15 Tactical Rifle is a versatile weapon that embodies the durability and precision that Armalite is known for.Its upper and lower receiver is forged from 7075-T6 aluminum and has an anodized black finish to withstand harsh conditions.'The M-15 also features a Magpul STR lightweight stock and a 15" M-LOK handguard that allows for the easy addition of rails when needed.The rifle has a chrome-lined chrome moly barrel and a tactical aluminum handguard with a slim octagonal profile.It has a full-length MIL-STD 1913 12 o'clock rail for sights and accessories a Magpul STR multi-position collapsible buttstock Magpul MBUS flip-up sights and a flash-hiding compensator.This particular model has a 16" barrel and a mid-length gas system with an adjustable gas block.Features:Armalite M-15 Tactical Semi Auto Rifle M15TAC165.56 NATO16" chrome lined / chrome moly vandium barrel1:7 RH twistFlash hiding compensator15" Tactical M-LOK handguardForged flat-top with MIL-STD 1913 rail 7075-T6 Aluminum upper receiverForged 7075-T6 Aluminum lower receiverTwo-stage precision triggerMagpul STR collapsible stockMagpul gripMagpul front and rear sightMagpul PMag 30 roundOverall Length 33.3" / 36.6"7.0 lbs