PROOF RESEARCH

Proof Research 100561 AR-Style Barrel 300 Blackout 16" Carbine Length Gas System 1:8" Twist 5 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped

Proof Research 101261 AR-Style Barrel 308 Win 16" Intermediate Length Gas System 1:10" Twist 5 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped

Proof Research 100028 AR-Style Barrel 308 Win 18" Rifle Length Gas System 1:10" Twist 5 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped

Proof Research 121665 AR-Style Barrel 6.5 Grendel 18" Rifle Length Gas System 1:8" Twist 4 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped

Proof Research 101292 AR-Style Barrel 308 Win 20" Rifle Length Gas System 1:10" Twist 5 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped

Proof Research 100462 AR-Style Barrel 223 Wylde 20" Rifle Length Gas System 1:7" Twist 4 Grooves, 1/2"-28 tpi, Stainless Stainless

Proof Research 130384 AR-Style Barrel 6mm Arc 20" Rifle +1 Length Gas System 1:7.50" Twist 4 Grooves, 5/8"-24 tpi, Stainless Stainless

Proof Research 100042 AR-Style Barrel 6.5 Creedmoor 20" Rifle +2 Length Gas System 1:8" Twist 4 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped