AR-15 Pistol Buffer Tube (PBT)™ by Phase 5 Weapon Systems Inc features our billet aluminum buffer tube, foam pad constructed of ultra-durable nitrile rubber, plus Mil-Spec end plate and castle nut. Buffer tube is compatible with Mil-Spec carbine buffer and spring, and the lower slot is machined to accept all Mil-Spec end plates and sling mounting accessories.
Outside diameter: 1.25”
Pat No.: US D717, 906 S
Includes:
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- Pistol Buffer Tube (PBT)
- Castle Nut
- End Plate
- Foam Pad
