Luth-AR Mil-Spec Buffer Tube 6-Position AR-15 Black

The Luth-AR Mil-Spec Buffer Tube is a six-position receiver extension tube for AR-15 rifles. It is designed for use with a mil-spec diameter collapsible stock assembly or a similar stock that uses a carbine-style receiver extension tube, serving as the mounting point for the buttstock.

The tube is machined from 6061-T6 aluminum and finished in black with a hardcoat anodized surface. The mil-spec diameter matches standard AR-15 carbine stocks, and the six-position design allows the stock to be set at multiple lengths of pull.

The product is listed under manufacturer number BS-15M and fits mil-spec AR-15 receivers.

• Platform: AR-15
• Type: Carbine buffer tube (receiver extension)
• Positions: Six
• Material: 6061-T6 aluminum
• Finish: Hardcoat anodized, black
• Fit: Mil-spec diameter carbine stocks
• Manufacturer number: BS-15M