AR-15 Pistol Buffer Tube (PBT)

Phase 5 WSI will not honor returns on any buffer tubes due to policy, rule, regulation, or law changes.

Product Description:

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


    • Pistol Buffer Tube (PBT)
    • Castle Nut
    • End Plate
    • Foam Pad

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In stock
Item Price: $39.95
Overall Length:
7.4 inches
Product Weight:
Assembled Weight:
Made in the U.S.A.

CNC-machined 7075 T651 certified US made billet aluminum Pistol buffer tube

Tube is designed to fit Mil-Spec carbine buffer and spring.