AR-15 5.56/.223 16" STAINLESS STEEL PREMIUM QUAD UPPER ASSEMBLY FEATURES:
Barrel: 16" M4 contour, 416r cold rolled steel, stainless steel finish, M4 feedramps, .750 gas block diameter
Gas System: Carbine Length Gas System
Chamber: .223 Wylde (5.56 NATO/.223 REM)
Twist Rate: 1/8 button rifled
Muzzle Device: Thread 1/2 X28 , Birdcage A2 - we currently make these uppers with nitride A2 flash hider
Handguard: Mid-length Qaudrail Free Float - 10"
A3 flat top upper receiver - Made from certified 7075-T6 aluminum forgings, black hardcoat anodized to gov. specs.; forward assist and dust cover installed
Does not come with BCG and Charging Handle. May be purchased separately. Rails may differ in design, depending on stock availability, the same excellent quality. Images may not be an exact representation of the product.