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.
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