This Bear Creek Arsenal AR-22 16" .22LR barrel has a blowback gas system, with a black nitride finish, and a 1:16 twist. Our AR-22 rifle barrels are made from the finest Chrome Moly Vanadium and precisely rifled for high accuracy at a great price. Use a Bear Creek Arsenal ar barrel in your AR15 next build and experience superior performance back by a lifetime warranty! All finished barrels go through a 100% inspection process. Inspections Equipment includes CMMs and Air Gauges for the bores as well as visual and machine inspection. Visit our YouTube channel to see our AR15 and AR10 barrels in action and get answers to common questions about your gun. {{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="42"}}