The detent knob on the rear easily adjusts windage
The "semi-auto" carrier is slightly lighter to provide the least amount of recoil impulse for rifle length gas systems and its design makes reinstalling the firing pin easier after cleaning
5" or longer barrel revolvers with pinned front sight and adjustable rear sight
The extra thick
Multi-function handle can be used with traditional rods
Crimson Trace 011870 Lasergrips Fits S&W J-Frame Round Butt, Red Laser 633nM Wavelength 5mW Output, Black Polymer Shotshell Slug Loads The detent knob on theLaser sights for the popular Smith & Wesson J Frame revolver line feature a hard polymer surface that is rugged and well suited for personal defense. Fits S&W Airlight, Airweight, Bodyguard (Except Polymer Framed Models) Chief's Special, Centennial, Ladysmith, Models 36,37,38,49,60,63,317,331,332,337,340,342,351,360,442,637,638,640,642,649,651 and 940 Round Butt Only.