Buffer Tube

This receiver extension is designed to work with Mil-Spec dimensioned M4/AR-15 type collapsible stocks. It also can be utilized as a replacement receiver extension for the AR-10 rifle.Features :Six position receiver extension made from impact extruded...

The RE-1 features five stock positions, each of which has a corresponding numeral lasered on the top side of the tube for quick visual indexing. These tubes are made from extremely tough 7075-T6 impact extrusions, and feature a mil-spec hardcoat anodized...

BCM MK2 Receiver Extension for your AR15" M16" M4. Machined from 7075T6 and manufactured to Mil-Spec dimensions and specifications. Mil-Spec receiver extensions have a slightly smaller dimension where the stock slides on. *NOTE* These buffer tubes...

The Strike Industries Advanced Receiver extension brings an updated aesthetic and increased functionality to an often neglected, yet highly important component of the AR15/AR10 weapon system. The scalloped surfaces decrease friction with tight fitting...

Their Mil-Spec 7075-T6 aircraft aluminum Anti-Tilt Buffer Tube uses ,carrier cradle, extensions to ensure that the carrier is always supported by the buffer tube, even when the bolt is forward. This prevents carrier-tilt and premature wear on the buffer...