X-Caliber Barrel & Mfg. offers the widest variety of contours and calibers in the industry. Our quality is equal to, or surpasses any of the big name barrel makers. All of our barrels are hand lapped and QC inspected before they are shipped to ensure the highest quality and greatest accuracy.
Note - Our 1 MOA Accuracy Guarantee is ONLY valid with JP Ent, Young Mfg, and RCA bolts head spaced to your barrel at our factory. You can buy one from us, or you can send us yours and we will head space it here for a $10 fee.
Build a custom AR22 conversion barrel. For use with AR15 to .22LR conversion kits only (.22LR to 223Rem Chamber Insert type). These barrels come with .217/.222 or .218/.222 bore and groove rifling but with a .223Rem chamber to accept various conversion kits out there but without sacrificing accuracy/velocity from using improper bore/groove diameter. No gas ports are drilled on these barrels.
-----MUST BE USED WITH AN AR-15 to 22LR CONVERSION KIT AND FIRED ONLY WITH .22LR AMMO-----PLEASE READ BELOW IN OVERVIEW FOR MORE DETAILED INFORMATION.
Build a custom AR-15 barrel specifically for use with a Superlative Arms Piston Kit. This barrel will come with properly sized and spaced gas block journal dimples along the bottom for use with Superlative Arms' Piston Retrofit Kits. The gas port will sized appropriately as well.
To redeem: Once you've customized your barrel and added it to your cart, head to this page and add one (1) of the Inventory #1 4" AR9 9mm barrels to your cart. If done correctly, that 9mm barrel should appear as $0.00.