Advocates of the Lone Peak actions will be an even bigger fan of the PROOF Research pre-fit stainless steel designed for the popular Lone Peak action. PROOF's Lone Peak pre-fit barrels will arrive threaded/chambered with 5/8x24 muzzle threads. This is a shouldered barrel that requires few specialized tools for install. They're offered with an assortment of caliber, lengths, and twist rates in stainless steel..
* These Proof Lone Peak pre-fit barrels are pre-headspaced. However, it is always recommend to double check headspacing with proper gauges before firing a rifle.
