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”
Includes:
Pistol Buffer Tube (PBT)
Castle Nut
End Plate
Foam Pad
Carbine Buffer – Standard 3oz
Phase 5 Enhanced Buffer Spring
