AR-15 5.56/.223 20" NITRIDE SPIRAL UPPER ASSEMBLY / MLOK / TRIPORT INCLUDES:
Barrel - 20" 4150 cmv hbar contour barrel, nitride coated, spiral fluted. Hardened to 26-32 rc and stress relieved. Chambered in 5.56 NATO (shoots both, 5.56 and 223 Rem), 1-8 rh twist.* Button rifled. .750 under gas block. 1/2-28 threads, completed with a nitride triport muzzle brake and a crush washer. M4 feedramps. Rifle length gas system.
A3 flat top upper receiver - made from certified 7075-T6 aluminum forgings. Black hardcoat anodized to gov. specs. Forward assist and dust cover installed. M4 feedramps.
Gas system - low profile .750 steel gas block, hardcoat anodized. Rifle length stanless gas tube.
Handguards - 15" slim free floating mlok rail. Made from aircraft quality aluminum and black hardcoat anodized.
Does not come with BCG and Charging Handle. Maybe purchased separately. Images may not be an exact representation of the product.
