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Proof Research 100639 Carbon Fiber AR-Type 6.5 Creedmoor 22" Barrel with Rifle 2+ Gas System
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Proof Research 101292 Carbon Fiber AR-Type 308 Winchester 20" Barrel with Rifle Gas System
Proof Research 106259 Carbon Fiber Bolt Action 284 Winchester 24" Barrel Blank with Sendero Light Contour
Proof Research 100028 AR-Style Barrel 308 Win 18" Rifle Length Gas System 1:10" Twist 5 Grooves, 5/8-24 tpi, C
Proof Research 100042 AR-Style Barrel 6.5 Creedmoor 20" Rifle +2 Length Gas System 1:8" Twist 4 Grooves, 5/8-2
Proof Research 100059 AR-Style Barrel 6.5 Creedmoor 24" Rifle +2 Length Gas System 1:8" Twist 4 Grooves, 5/8-2
Proof Research 100387 AR-Style Barrel 223 Wylde 11.50" Rifle Length Gas System 1:7" Twist 4 Grooves, 1/2"
Proof Research 100394 AR-Style Barrel 223 Wylde 11.50" Carbine length Gas System 1:7" Twist 4 Grooves, 1/2-28
Proof Research 101681 AR-Style Barrel 223 Wylde 20" Rifle Length Gas System 1:8" Twist 4 Grooves, 1/2-28 tpi,
Proof Research 100448 AR-Style Barrel 223 Wylde 18" Rifle Length Gas System 1:8" Twist 4 Grooves, 1/2-28 tpi,
Proof Research 100462 AR-Style Barrel 223 Wylde 20" Rifle Length Gas System 1:7" Twist 4 Grooves, 1/2"-28
Proof Research 100523 AR-Style Barrel 300 Blackout 12.50" Pistol Length Gas System 1:8" Twist 5 Grooves, 5/8-2
Proof Research 100561 AR-Style Barrel 300 Blackout 16" Carbine Length Gas System 1:8" Twist 5 Grooves, 5/8-24
Proof Research 100998 Bolt Action Barrel Blank 308 Cal 22" Sendero Contour 1:10" Twist 5 Grooves, Carbon Fiber
Proof Research 101001 Bolt Action Barrel Blank 308 Cal 24" Sendero Contour 1:10" Twist 5 Grooves, Carbon Fiber
Proof Research 100004 Carbon Fiber AR-Type 223 Wylde 16" Barrel with Mid Gas System