Noveske AR-15 N4 SPR Upper Receiver Assembly 5.56x45mm NATO 18" Barrel NSR-15 M-LOK Handguard Black

Barrel 18" 5.56mm 416R Stainless with 1:7 twist Individual serialized barrel for QC purposes Hand polished Noveske Match Chamber Intermediate length gas tube system Noveske marked gas block: Low profile, .750" journal, pinned to barrel M4 barrel extension w/extended hand polished feed ramps 1/2"x28 with a Noveske Pig Pen suppressor compatible muzzle device Upper Receiver Noveske 4th Generation precision machined billet receiver from 7075-T6 aluminum w/extended feed ramps Hardcoat type III anodizing, then Armor Black 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) Fre