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This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte black. It fits..
$9.95 $7.95
This is our standard AR-15 carbine buffer tube/receiver extension castle nut in matte tan. It fits b..
$9.95 $7.95
It fits commercial tubes only.Specifications:4140 Tool Steel constructionBlack anodized finishDiamet..
$9.95 $7.95
