Bolt Carrier Groups

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...

Bootleg .308 Phosphate Complete Bolt Assembly Cam Pin, Firing Pin And Retaining Pin, Uses All Standard Mil Spec Components Bp-abc-p30Product Type: Bolt Carrier Group

Odin Works Bolt Carrier Group, Bolt Carrier Group, Stainless Steel Finish Acc-9mm-enhanced-bcg-ssModel: Bolt Carrier GroupProduct Type: Bolt Carrier GroupFinish/Color: Stainless

High quality components and precise manufacturing make Rise Armament 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.Features...

High quality components and precise manufacturing make Midwest Industries 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.Features...

The heart of a reliable AR-15 build is a quality 5.56 bolt carrier group assembly. These are the same high quality BCGs Angstadt makes for law enforcement and military groups around the world. Machined to mil-spec dimensions and finished in a beautiful...