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Mil-spec Receiver Extension Tube
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Replacement receiver extension tube is the correct length and 1.146″ outside diameter for proper fit of a mil-spec carbine adjustable buttstock. Replace a worn out USGI tube or convert a commercial carbine or fixed-stock rifle to accept an adjustable buttstock that requires the smaller mil-spec tube. Six precision-machined notches on the underside grasp the stock’s locking pin securely to ensure fast positive stock length adjustments without slippage. One-piece aluminum construction with a tough abrasion-resistant matte black hardcoat anodized finish. Rifle conversion also requires a carbine action spring and buffer available separately. Mfg: High Standard SPECS: Aluminum hardcoat anodized matte black. 7¼” (18.2cm) long 1.146″ O.D.