This BCA AR-15 complete 9MM branded pistol has a 10.5" M4 barrel with a parkerized finish, and features a 1:10 twist rate, with a blow back gas system. It includes the new 9.5" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and right-side charging (Gen2) handle (patent protected). This 9MM upper is comes with a BCA mil-spec AR-9 Billet lower. Compatible with Glock style magazines. Shop more 9mm! Check out Magazines here! {{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="56"}} *Note - We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive. {{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="42"}}