BCM PISTOL RECEIVER EXTENSION KIT W/BUFFER/SPRING/HARDWARE

FEATURES
-Pistol Receiver Extension Kit
-Buffer Tube
-For AR15 Pistols
–For your AR15 M16 M4 Pistol Lower Receiver. Pistol Receiver extension (buffer tube) machined from 7075T6
-Hard Coat Anodized per Mil-A-8625F Type III Class 2
-1.2 outside diameter. Will fit your ATF compliant SigTac SB15 type pistol stabilizing brace. Works with carbine buffer and action springs.