I have a P320 pistol that I have swapped back and forth with a variety of grip modules. Last time I swapped and reassembled, the pistol did not function. The slide was cycled and the trigger stops and no firing pin drop. I disassembled several times and insured the takedown lever and slide catch reengaged and still does not work. I have not tried to disassemble the FCU. Suggestions?
Keep your weapon handy, live free and prosper.
July 19, 2022, 07:37 AM
4sigman
Is the slide the same, or swapping between slides? And you have locked the slide back with the slide catch? (I think that is what you meant above, just being sure.)
July 20, 2022, 07:39 AM
two-two-niner-romeo
The Sig Guy has some excellent videos on the internal workings of the P320.
Thanks for the replies. My problem was mismatched parts between the original FCU and the improved FCU. I now have an improved FCU with grip and an old style slide that is incompatible. Time to spend more money.