This kit contains all the necessary parts to mount 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.
BCM®™ QD Receiver End Plate
