Where ever you go DO NOT go to Carl Jarl. Bullet Hole was backlogged years ago so had Carl Jarl install the sights on a S&W M&P. Tim was at the Big Buck Classic so the assistant smith installed them. The dumb SOB put the whole gun frame in all in the vice and pounded them out and used a steel punch to install the new ones. When I got it back if you pull the trigger the whole slide would move. They got the new parts to fix it and lo and behold the master gunsmith one Tim Casteel couldn't put the damn thing back together right. Did the same thing. WTF it's a M&P and you can't fix the problem...really!? Sent it back to Smith and Wesson to be fixed right.