Replacing the stock firing pin on the MAS 49/56 with one designed to eliminate slam fires or burst fires. Then a run to the range to check out how well the firearm performs, and it's accuracy.
I did the same modification to my MAS49/56 and continued to experience slam fires, The solution was to reduce the weight of the pin by slimming it down in the middle. Since then I sopped having the problem
I got one of these rifles last year. Experienced the slam fire with the PPU. I’ve gotten the spring firing pin but not fired yet. Hope it helps. Sorry to see you we’re having the double tap fire with the new pin
Find one what? Firearm you have to go to auctions and gun shows. Firing pin available from firearms parts suppliers you can find via Google. Try searching for titanium firing pin for mas 49/56 .
