So I finally tried out the 9x25 conversion on my 29SF. Not so hot results I must say. It was a hoot to shoot while it worked but that was only 50% of the time. It's a Glock 29SF w/ Heinie straight8 night sights, Pierce grip extension, wolff non captured guide rod and 21lb spring and Zevtec competition trigger kit w/ the lone wolf 9x25 barrel. All doubletap factory ammo. So I started out with 125gr and every 3rd round or so was a light strike but very accurate. Then I switched over to the 95gr and every other round would over travel the slide to where it wouldn't come back to battery with out a tap. I didn't explore that much further for fear of gun damage. It functioned flawlessly with 10mm after I changed the barrel back. So do I need to step up the striker spring and the recoil spring to 24lb to fire 9x25 reliably? It really is a hoot to shoot 9x25 if you haven't done so. Very impressive... as long as it goes bang or bang twice in a row. Wanna kill these ads? We can help!