EXTENDED BOLT RELEASE FOR RUGER MKIV BLKExtended Bolt Release Black - Ruger MK IV - SS - The bolt release pad is CNC machined from 416 stainless and extends .050" further than the factory release. This .050" extension combined with the improved ergonomic flat design of this releas .050" extension combined with the improved ergonomic flat design of this release is an improvse is an improv
