The danger of swapping a spring like this is that it may not crack primers, and because it’s not a part that is spec’d for the Storm, the wear cycle might be different than what I’d like to see with a factory part. The trigger feels really great in dry fire. The weight of the DA stroke fell to somewhere between 8 and 9 pounds, and the SA is now under 4 pounds. After changing the spring to the Cougar D spring, I noticed an immediate reduction in trigger pull weight.

So, yeah that’s a fun a experience.Īfter the spring change, it’s time for a bunch of dry fire to make sure everything’s all settled in correctly. I was pulling on the spring at the point where internal force-meter was screaming “it’s going to break or something” but I just kept yanking and it came out. I’m not kidding when I say “considerable” amount of force. Put the new hammer spring over the strut, and then put everything together in reverse order.Ī note on step 5.This will require a considerable amount of force. Using a hook or something, pull out the factory mainspring.Cock the hammer and remove the backstrap plug.Drive out the silver pin under the backstrap.Take the slide off the gun – not actually necessary, but it makes everything a wee bit safer.I once shot a guide rod out of a 92FS hard enough to break a plate, and if you’ve seen my Ruger GP100 Trigger Job video you know that I don’t always get along well with springs.Īctually changing the spring on the Storm is fairly easy. Whenever attempting a new procedure on a firearm, I’ve found it’s best to order a few redundant parts just in case I decide to send one flying across the room.

After reading reports of other shooters swapping the D springs from Cougars into their Px4 Storms, I decided to give it a try.Īfter discovering that Brownells stocks D springs for Beretta Cougars, I ordered…several.

The Cougar guns never really caught on, but importantly for our purposes, they did make a 8000 D series. However, there’s a possible solution, and that lies in the spiritual predecessor to the Storm: the Beretta 8000 series. It doesn’t matter if you get a G, F, D, or C model – same mainspring in a Storm. However, what if it was possible to make the Storm’s trigger even better?īeretta afficionados have long known that the quickest way to improve the trigger pull on a Beretta 92/M9 series gun is to pull the factory mainspring and replacing it with one of the springs from the DAO Beretta 92, referred to as “the D spring.” That plan doesn’t work on a Px4 Storm, because all of the models share the same mainspring. It’s also a very easy gun to shoot, with a pleasant recoil impulse and an excellent DA/SA trigger right out of the box. It is a very nice gun, chambered in 9mm, and I think it just looks great.

Beretta 92s with beretta d spring