RUGER AR Buffer Tube Kit

ONE HORSE AR15 Buffer Tube Kit Carbine Buffer

LBE Unlimited AR-15 Carbine-Length H1 Heavy Recoil Buffer Tube Kit

GUNTEC AR15 PISTOL BUFFER TUBE KIT ANODIZED BLACK

LBE MILBUFKT4POS MIL SPEC 4 POS TUBE KIT BUFFER

Hogue AR-15/M-16 Grip Kit- Includes Mil-Spec Buffer Tube and Hardware - Black

WMD Guns AR-15 Mil-Spec 6 Position Carbine Buffer Tube

Tacfire Buffer Tube Kit, Black - MAR049-B