LBE Unlimited AR-15 Complete Bolt Carrier Group

This bolt carrier group comes fully assembled from the manufacturer LBE Unlimited. As such, it is ready to be used in a new build or simply dropped into an existing build as a replacement or an upgrade. (Always check headspacing before using a retrofit BCG). It is also a clever buy to hold in reserve as a backup carrier group if the need were to arise. It can be used for several different calibers including .223 and .300 BLK in addition to the 5.56 NATO. This LBE Unlimited Bolt Carrier Group features a matte phosphate finish, on the popular 8620 (carrier) steel and 158 Carpenter (bolt) steel it is made of, adding a very consistent aesthetic to the group. The choice of 158 Carpenter steel offers MIL-SPEC and provides excellent hard use durability. The 8620 carrier offers quality without excessive costs and exceeds durability specification standards as well. The combination of steel makes for a relatively low maintenance, hard-wearing BCG, that reduces the chance of breakage under normal conditions. These premium steel choices also showcase a good value price point for the complete BCG, which includes the staked gas key and the extractor and bolt rings, too. 


Features:

• Phosphate finish
• Made for 5.56/.223/.300AAC Blackout 
• Chrome Lined carrier interior
• Complete bolt carrier group
• Comes fully assembled 
• 158 Carpenter Steel bolt
• 8620 Steel carrier body

The LBE Unlimited carrier group is also chrome-lined on the interior of the bolt way as well as possessing a chrome-lined gas key. The chrome lining on these parts allows for fluid movement during extraction and ensures that the LBE Carrier group may function at peak performance. These chromed elements can be indispensable in trying to achieve the very best performance and reliability that are needed so that the rifle is cycling properly regardless of the task at hand. The extractor and the ejector are two other key components of the bolt carrier group that ensure proper function and the strong, hardened steel alloys of this LBE offering should be a durable choice with the mechanisms included, assembled inside. The overall package is easy to maintain, reliable and spec’d to provide a drop-in performance upgrade to most AR’s.