Bolts, Bolt Carrier Groups, and Accessories

The Reliability Enhanced Bolt Carrier Group is a 5.56mm full-mass, full-auto rated M16/M4 bolt carrier group. The carrier features a properly torqued and staked, chrome lined, Nano coated, gas key. The cam pin is machined from an advanced tool steel also...

The best just got better! From the inventors of the very first fully modular, patented, ambidextrous safety selector for the AR-15 platform, Battle Arms Development is raising the bar on reliability and compatibility of hard-use MSR components.Features...

This DPMS Style 308 BCG is precision machined from 8620 Steel with a 9310 Precision Hard Ground Bolt. The entire carrier assembly is NiB, Electroless Nickel Boron coated with the patented, advanced UCT EXO process, unlike standard NiB coatings. This...

Dead foot arms modified cycle system (mcs) with folding stock adaptor includes everything you need for fire while folded compatibility on your ar-platform rifle: complete folding stock assembly, mcs complete m-16 style bolt carrier group, plunger, and...

Dead foot arms modified cycle system includes everything you need: complete folding stock assembly, modified bolt carrier group (which includes plunger and guide rod), and recoil and buffer spring.Finish: Black Hardcoat AnodizedType: Stock AdaptorModel:...

Dead foot arms modified cycle system (mcs) with gen 2 folding stock adaptor includes everything you need for fire while folded compatibility on your ar-platform rifle: complete folding stock assembly, mcs complete m-16 style bolt carrier group, plunger,...

Optimized bolt carrier 5.56#.Sf-obc-556.