Radical Firearms Carbine Buffer Tube

Tacfire 6-Position Mil-Spec Buffer Tube Kit for AR-15 - MAR047-A

Tacfire Mil-Spec Buffer Tube for AR-15 - Matte Black, Built to Last - MAR040

Tacfire Pistol Buffer Tube for AR-15 - Matte Black, Compact and Sturdy - MAR042

RADICAL FIREARMS RF-15

Ar-15/M4 Receiver Extension

RADICAL FIREARMS RF-15

Tacfire Short Buffer Tube System for AR-Style Pistols - Black, Compact Comfort - MAR139-C