Originally Posted by
That Guy
There are several topics on the PX4 and I can't even find all of them on my phone - my apologies if this has already been asked and answered.
Beretta sells a part they call "Lighter MAX Hammer Spring for Beretta Pistols (Competition)", part # C90160. They say it is compatible with the PX4 but won't say the weight of the spring. Does anyone here happen to know it, or have experience with this part?