This Bear Creek Arsenal AR-15 .450 Bushmaster Complete pistol has a 10.5" heavy barrel with a parkerized finish, and features a 1:24 twist, with a pistol length gas system. This .450 Bushmaster AR-15 also includes the new 9.5" MLOK rail, a forged receiver, a BCA AR15 Bolt Carrier Group, Flash Hider, rear charging handle, and mil-spec forged AR-15 multicaliber lower. This pistol has the new handguard. Shop more .450 Bushmaster Rifles! 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="90"}} {{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"}}