This BCA AR-15 complete 6.5 Grendel rifle length upper has a 20" heavy barrel with a parkerized finish, and features a 1:8 twist rate, with a rifle length gas system. It includes a 15 1/4" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a side charging (gen 2) handle. This 6.5 Grendel upper is compatible with any mil-spec AR-15 lower. This has the new handguard. Shop more 6.5 Grendel 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"}}