This Bear Creek Arsenal AR-15 side charging 6.5 Grendel Complete Pistol has a 10.5" heavy barrel with a black nitrided finish, and features a 1:8 twist, with a pistol length gas system. This 6.5 Grendel side charging AR-15 pistol includes the new 10.5" MLOK rail, a billet side charging upper receiver, a BCA AR15 Bolt Carrier Group, Flash Hider, Gen-2 side charging handle, and mil-spec billetAR-15 multicaliber lower.We recommend Tapco magazines and BCA Hollow Point Boat Tail 75 gr., Nosler Match Grade 69 gr. (5.56 Hornady Frontier 55gr.){{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"}}