Bear Creek Arsenal 9mm conversions barrels for Glock 22 handguns are manufactured by us in Sanford NC, USA. Durable and highly accurate, our Glock 22 Titanium Nitride (TiN) replacement barrels are backed by our limited lifetime warranty. Titanium Nitride is an extremely wear resistant ceramic coating with renowned aesthetics and durability. 4150 Chrome Moly Vanadium Matte Gold Titanium Nitride Finish 1:16 Twist 9 MM Caliber Threaded Unbranded Our BCA barrels for Glock are compatible with Glock Gen 1-4 pistols (not Gen-5). Thread Protector sold separtately: https://www.bearcreekarsenal.com/guns-parts/thread-protector.html {{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="42"}}