We took an innovative approach with this special offering marrying old with new. Proof research was tasked do two things they had not done before with their carbon fiber barrels, bore for .358 and leave a band of steel for us to mount our island sight. This allowed us to chamber a state-of-the-art barrel for the legendary 35 Whelen cartridge and utilize the classic combination of the Griffin and Howe quick detachable top mount with the combination of express sights. This sighting system allows the hunter to quickly remove the scope and access the iron sights when needed, then return the optic to the rifle without loss of zero.