MilSpec/GI AR-15 6 Position Carbine Buffer Tube - Black

Timber Creek Outdoors Buffer Tube Kit for AR-15, Red - ARBTKR

Timber Creek Outdoors Buffer Tube Kit for AR-15 - Lightweight and Durable in Blue Finish - ARBTKB

Timber Creek AR Buffer Tube, Black - AR BT BL

ONE HORSE AR15 Buffer Tube Kit Carbine Buffer

TacFire 6-Postion Mil-Spec Buffer Tube Kit w/Dual Loop End Plate, Black

GUNTEC AR15 PISTOL BUFFER TUBE KIT ANODIZED BLACK

Aim Sports Buffer Tube, Anodized Black - XDB15PSTOC