Hello, have a 925m (22 mag)that I really like except that for every 50 shots, probably 6 will be misfires, weak dent. Shipping the gun to williams gunsight (marlin authorized repair for my area), over the phone one of their smiths said either pin, spring or head space problem. That issue aside, do not like the one piece front ramp/bead sight, is there a seperate ramp that can replace that one, where
I can change beads? Thanks, Jsal