6mm ARC Barrels: Bartlein 4 Groove-Tactical – Compass Lake Engineering, LLC

Our 6mm ARC barrel come standard with 1-7.5 Twist and M4 Feed Ramp. You have the option of barrel type, thread, fluting, finish type and to add a matched bolt. If you have a bolt that you would lik…

Bartlein Barrels, Inc

Bartlein Barrels, Inc

Sionics Weapon Systems 5.56 Mid-Length Chrome Line AR-15 Barrel - 16

Lightweight 6.5 Grendel Upper 11.5 - Craddock Precision

6mm ARC Builder Kit w/ 20Bartlein Barrel

6MM ARC Barrel 6MM ARC Barrel

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Are there any AR 15's made that you can count on shooting half MOA

224 Valkyrie Upper: Bartlein-SS 4 Groove – Compass Lake Engineering, LLC

Barrel Sub-Assm, 16 MT 416SS, 6mm ARC, SBN

Bartlein Barrels, Inc

Compass Lake Engineering, LLC – Best choice of rifles, barrels, accessories and custom work!