Features:A tactical workhorse the AR10TAC18 is the perfect tool for duty and defense. All Armalite Tactical Series rifles come equipped with MAGPUL MBUS flip-up sights and MOE+ pistol grips. The dual-purpose flash hiding compensator tames recoil while reducing signature. The sturdy 15? tactical Key-Mod handguard provides ample hand placement and a full-length MIL-STD 1913 12 o'clock rail for sights an accessories. An adjustable gas block also allows the rifle to be individually tuned for optimal performance for your choice of ammunition and/or suppressor use.Specifications: PRODUCT LINE: AR-10 CALIBER: .308 Win | 7.62x51 BARREL: HB Double Lapped Chrome Lined/Chrome Moly BARREL LENGTH: 18" GAS SYSTEM: Rifle-Length TWIST RATE: 1:10 RH MUZZLE DEVICE: Flash Suppressing Compensator FRONT SIGHT BASE: Full-Length MIL-STD 1913 Rail HANDGUARD: 15" Free-Floating Tactical ATTACHMENT METHOD: Key-Mod STOCK: Magpul STR Multi-Position Collapsible UPPER RECEIVER: Forged Flat-Top with MIL-STD 1913 Rail 7075-T6 Aluminum LOWER RECEIVER: Forged 7075-T6 Aluminum SAFETY: Ambidextrous TRIGGER: Two Stage Precision CHARGING HANDLE: "Raptor" Ambidextrous FINISH: Hard Anodized Aluminum Manganese Phosphated Steel OVERALL LENGTH: 37.5" Collapsed | 41.5" Extended WEIGHT: 8.8lbs INCLUDED: One 25-Round Magpul PMAG Magpul MBUS Owner's Manual WARRANTY: Limited Lifetime Warranty