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 be sized appropriately as well.
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.
