Previous Product Next Product TX Arms AR10/AR15 Bolt Catch Detent Spring $0.75 19 in stock TX Arms AR10/AR15 Bolt Catch Detent Spring quantity Add to cart SKU: 4011-1900-006 Categories: AR15 Parts, Lower Parts, Lower Receiver Description Description TX Arms’ bolt catch detent springs are manufactured to Mil-Spec dimensions. For use on AR10 and AR15 style firearms. This product is 100% made in America and is covered under our TX Arms Lifetime Warranty. 100% American Made