This BCA AR-10 complete upper has an 18" barrel with a heavy profile, made of 4150 steel with a black nitride finish, Mil-Spec DPMS Low Profile, and features a 1:8 Twist Rate, and a rifle-length gas system. This Upper includes a 15" MLOK Split Rail, an M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, and a rear charging handle. It is chambered in 6.5 Creedmoor and machined with AR-10 feed ramps in the barrel extension.Shop more 6.5 Creedmoor Uppers!Magazine not included. Check out Magazines here!{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="56"}}{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="98"}}{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="91"}}{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="42"}}