Samson B.R.E. Bufferless Receiver Extension Folding Picatinny Adapter Alumnium Black

Samson B.R.E. Bufferless Receiver Extension Folding Picatinny Adapter Alumnium Black. A 6-position adjustable carbine buffer tube designed to integrate with mil-spec AR-15 carbine stocks (stock not included). Compatible with bufferless setups such as Sig Sauer MCX and MPX. Features folding mechanism that can be removed and reattached for right-side fold and a rugged mil-spec receiver extension for AR-15 platforms.