Reciever Extensions

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  • Receiver Extension Kit CARBINE AR15 -55CA6C7 (55CA6C7)
    1ea AR15 6 position buffer tube
    1ea AR15 receiver end plate
    1ea AR15 castle nut
    1ea AR15 carbine buffer
    1ea AR15 carbine buffer spring
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  • Pistol Receiver Extension Kit 55CA65A (55CA65A)

    Includes CMMG's pistol receiver extension, ambidextrous sling end plate, carbine buffer and spring. Designed to be used with 300 AAC Blackout and 5.56mm Pistol builds.

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  • VLTOR RE-1: AR-15 Receiver Extension - RRE-1 (RRE-1)
    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.
    • 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
    1. What is the difference between the commercial and Mil-Spec receiver extensions?
    The only difference between the two is the tube diameter of the receiver extension. Commercial sizing is 1.170 inches outside diameter. Mil-Spec is 1.150 inches outside diameter. All VLTOR receiver extensions are of Mil-Spec dimension. Please keep this in mind when ordering a stock.

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