CMMG 30D810A Barrel Sub-Assembly 300 Blackout 8" Black Nitride Finish 4140 Chromoly Steel Material Pistol Length with Medium Taper Profile for AR-15
http://www.tandktactical.com/shop/815835016283-cmmg-30d810a-barrel-sub-assembly-300-blackout-8-black-nitride-finish-4140-chromoly-steel-material-pistol-length-with-medium-taper-profile-for-ar-15-541
http://www.tandktactical.com/web/image/product.template/541/image_1920?unique=129bc11
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
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