Product Details
This is the bolt carrier group that comes standard in military rifles, and it's built to handle whatever you throw at it. It works with any standard AR-15 in 223 Remington or 5.56 NATO, has that durable parkerized finish that doesn't need babying, and it's from Colt, a name that's been around since they knew what they were doing. If you're building or upgrading an AR and want a reliable, no-fuss part that just works, this is a solid choice.