223 Barrel Nut Shims are a great compliment to any 223 Free Float Quad
Rail . If your forearm doesn’t have the ability to “time” the position
of the forearm in relationship to the gun, or shim will give you this
capability. This 0.19mm stainless steel shim fit between the barrel nut
and upper receiver to allow the user to adjust the relationship between
the gun and the forearm features like swivel studs, vent openings, and
pica tiny rails, to the shooters needs.
shipping on all orders! All orders ship out within 24 hours during weekday. (excluding items that need to be test-fired)