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The CMMG A1 Receiver Extension and Stock kit contains a rifle buffer assembly, rifle action spring and an A1 rifle length butt stock assembly. Combine this kit with your choice of lower parts kit to..…
The CMMG AR-15 Rifle Length A1 Receiver Extension is the perfect must have accessory for your next AR-15 rifle build. The CMMG tube is constructed from high quality aluminum and features a matte...
This Receiver Extension is for your MK4.Check out the entire range of products from CMMG.Material:SteelGun Style:AR-PlatformModel:Receiver ExtensionType:Buffer TubeFirearm Fit:MK4
The UTG Pro Mil-spec 6 position diameter receiver extension tube for AR15 rifles. The extension tube is CNC machined from 6061-T6 aircraft grade aluminum with precisely rolled threads for durable...
Tapco's AR Receiver Extension Tube kit includes a M4 buffer tube, castle nut, Tapco end plate sling adaptor, buffer, and a recoil spring.This model is for Mil-Spec AR rifles.
Attention Account Holders:
We’ve just launched our brand-new website! For security reasons, all existing customers will need to reset
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passwords before logging in. Please click “Forgot
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