Barrel nut type prefit for your rimfire receiver. This allows you to tune your headspace to the ammo/ammo lot you are using.
All of our rimfire barrels are cut from the best 416R stainless steel. They are all honed to .0001″ from end to end, hand lapped and double stress relieved. Our .22 barrel bore dimensions were specifically chosen to shoot well over a wide variety of temperatures we encounter in the Canadian climate.