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AR-15 Barrel Nut Shim Set



Shims are currently out of stock. We are still waiting on the manufacturer to get these to us but they are unable to get us a firm lead time. We hope to have the shims available in another 2 to 3 weeks. Backorder is not possible during this time, and we are not making any customer contact lists. Please just check back periodically. Sorry for any inconvenience.


Bison Armory AR-15 Barrel Nut Shim Set

3 Pack of 0.001" thick shims for use in the installation of AR-15 rifle barrels.

Use these shims to obtain correct barrel nut allignment within the correct barrel nut torque specifications.

Instructions are included and please watch our instructional video on You Tube below: