AR-15 Pistol Buffer Tube (PBT) by Phase 5 Weapon Systems Inc. features their 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.
- Black finish
- “Includes pistol buffer tube” castle nut” end plate and foam pad”
- Works great w/the Sig Sauer pistol stabilizing brace
- Fits AR-15 pistol