Samson 040614301 B.R.E. (Bufferless Receiver Extension) Black Anodized with Folding Picatinny Adapter Range Finders These primary improvements include moving

These primary improvements include moving from a non-removable rechargeable internal battery to a single removable rechargeable 18650

it's operable with the thumb

the Clip blade and the Spey blade

Expedition Big Game matches every cartridge with the perfect bullet weight

Samson 040614301 B.R.E. (Bufferless Receiver Extension) Black Anodized with Folding Picatinny Adapter Range Finders These primary improvements include movingThe B. R. E. The Samson Bufferless Receiver Extension with picatinny folding stock adapter is a 6 position adjustable carbine buffer tube designed to seamlessly integrate with mil spec AR 15 carbine stocks. Folding Mechanism can be removed and reattached for right side fold. Attach to the Brownell's BRN 180, Sig Sauer MCX, Sig Sauer MPX and other buffer less set ups. Stock not included.