AR-15 5.56/.223 20" STAINLESS BLACK SPIRAL FLUTED BULL UPPER ASSEMBLY / LEFT HAND Features:
Barrel - 20" 416 stainless steel bull contour barrel with spiral fluting, double tone. Hardened to 26-32 rc and stress relieved. Chambered in .223 Wylde ( accepts 5.56 NATO and .223 Rem rounds). 1-8 rh twist 6 groove button rifled. .936 diameter under gas block. Target crowned. M4 feedramps.
Gas system - low profile .936 steel gas block, black hardcoat anodized. Rifle length gas tube.
Handguards - 15" slim free floating mlok rail. Made from aircraft quality aluminum and black hardcoat anodized (we may have variations in mlok designs based on stock availability, the same excellent quality).
Does not come with BCG and Charging Handle. Maybe purchased separately. Picture shows the upper build on right hand upper receiver for visual purposes only.