Bolt Carrier Groups

Mystic Gold Steel BCG – .223 / 5.56 / .300 AAC Blackout Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes...

Mystic Bronze Steel BCG – .223 / 5.56 / .300 AAC Blackout Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG...

Mystic Black Steel BCG – .223 / 5.56 / .300 AAC Blackout Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG...

We look at the bolt carrier group as the heart of the gun. If the gas port is the lungs, then the bolt carrier group is the heart. It’s what drives the entire gun. If you look at the AR platform’s cycle of operations, everything happens...

The Bolt Component Kit you've described is a specialized set of replacement parts specifically designed for the bolt of .223/5.56 AR rifles. This kit includes essential components that are crucial for the proper functioning of the bolt assembly. Here's a...

Front Sight Kit Includes: Front sight post A2 - square Front sight spring Front sight detent

Firing pin retainer pin Material: Carbon Steel Heat Treat: HRC 45-50 Finish: Manganese Phosphate

This 6MM ARC Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6MM ARC. All critical parts are coated with EXO Nickel Boron Technology that provides permanent dry lubricity, extreme...

High quality components and precise manufacturing make CMMG parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on. CMMG, AR15 Bolt...

Introducing true unparalleled innovation..   The Two-Piece Bolt Carrier Group.   No matter how hard we tried, we simply could not get the quality BCG we needed in our systems, so we not so simply made our own. Most BCG's on the market...

Introducing true unparalleled innovation..   The Two-Piece Bolt Carrier Group.   No matter how hard we tried, we simply could not get the quality BCG we needed in our systems, so we not so simply made our own. Most BCG's on the market...

Everything you need to convert your existing upper to a dedicated .22LR. Just purchase a magazine and you are ready to go. For best performance use a round style hammer as notched hammers can cause function issues and 36 grain plated nose bullets have...