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Enhanced Carbine Buttstock Castle Nut

JP-SPEC comes to your carbine stock with this enhanced castle nut design. The Refined cosmetics make for a refined look while eliminating the sharp edges of the Mil-spec alternative. Pair this with our matching lock plate for a sleek upgrade package.

WARNING: The products offered for sale on this website can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov