RE-1 : AR15/M4 5-position Carbine/ Collapsible Receiver Extension


The RE-1 receiver extension allows you to mount a Mil-Spec stock on a civilian carbine or convert your A2 style fixed buttstock to a collapsible configuration. This receiver extension has five positions and corresponding white position numbers that are visible through the witness hole on most stocks.

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  • Five position receiver extension made from impact extruded 7075 T6 aluminum
  • Hard coat anodized
  • Positions are numbered and are visible through the witness hole on most stocks
  • Snag-free sliding of the buttstock
  • Receiver is designed for carbine spring and buffer (spring and buffer sold separately)
  • Receiver extension is Mil-Spec dimensioned and will only accept M4 type Mil-Spec buttstocks
  • Weighs 3.8 oz
More Information
Buffer Tube Parts Buffer Tube / Receiver Extension
Compatibility AR15
Manufacturer Number RE-1
UPC 153675
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