Note: This is a pre owned rifle. No box, as is. Barrel: 13.5" 5.56mm 416R Stainless with 1/7 twist and Hand polished Noveske Match Chamber OR 13.5" 5.56mm with 1:7 twist and Hand polished 5.56mm NATO Chamber Mid length gas tube system Noveske marked gas block: Low profile, .750" journal, pinned to barrel M4 barrel extension w/extended hand polished feed ramps Noveske pig pen permanently pin and welded per ATF requirements to legally meet 16" barrel length Upper Receiver: Noveske 4th Generation precision machined billet receiver from 7075-T6 aluminum w/extended feed ramps Hardcoat type III anodizing, with Cerakote ceramic coating for superior finish longevity Black nitrided Noveske marked forward assist Noveske Love Handle ambidextrous charging handle Featuring anti-rotation interface with handguard Phosphate coated bolt carrier, full auto compatible, chrome lined carrier bore and key Properly staked grade 8 American made gas key bolts Phosphate bolt made from Carpenter 158 heat treated steel MPI tested (magnetic particle inspected) Handguard: 4th Generation NSR-15" (M-LOK) Free Floating Handguard Featuring M-LOK mounting positions every 45 degrees with picatinny 1913 top rail Light weight American made steel barrel nut Lower Receiver: Noveske 4th Generation precision machined billet receiver from 7075-T6 aluminum Oversized flared magazine well Integrated oversized trigger guard Ambidextrous bolt release Ambidextrous magazine release Ambidextrous 45/90 Radian Talon safety selector Hardcoat type III anodizing, with Cerakote ceramic coating for superior finish longevity Properly staked Noveske QD sling mount endplate Noveske marked takedown and pivot pin Adjustable tension screw for perfect fit between upper and lower Giselle single stage flat trigger bow, 3.5lbs pull 6 Position Mil Spec Impact extruded carbine extension H2 buffer hydraulic buffer with carbine action spring Furniture: Stock: Magpul Grip: Magpul Sights: Magpul MBUS Pro steel front and rear adjustable sights