I have a couple of the full size 15 round mags thatI got, not realizing they weren’t 17s.
Been running the Wilson Combat 12# hammer spring.
I have a couple of the full size 15 round mags thatI got, not realizing they weren’t 17s.
Been running the Wilson Combat 12# hammer spring.
I put the 11# spring in a few weeks ago. Running fine so far.
Sent from my Pixel 2 using Tapatalk
IME, the 12 lb. spring will run anything, including Winchester NATO-spec hardball. The 11 lb. gave occasional light strikes with that load. I'm running the 12 lb. spring in my three full-size PX4s because I like the NATO-spec stuff.
Paging @PX4 Storm Tracker
Also, I'm hesitant to recommend FaceBook, but the PX4 Storm group on their is a great resource. I suspect that the gentleman that runs that is the same as I referred to above
https://www.facebook.com/groups/719344198087388/
That is actually a really good Facebook Group.
Thanks for bringing my attention to this post.
Yes, @That Guy, I am the Administrator of that Facebook group. It is the largest, friendliest and most constantly active PX4 group on Facebook. You are welcome to join us!
We have whole sections on all aspects of the PX4, including a lubrication map and discussion about lube choices. All questions get answers.
With nearly 200,000 rounds on PX4s and 92,600 on my range PX4 .45 I have found a lubrication plan that works well and protects defense ammo and firing pin penetration.
In this first picture the pointers show places to lubricate, the red X shows where not to (to protect ammo). The next 2 pictures will break it down into a more usable map.
This picture shows which areas get a generous amount of lubrication.
This picture shows which areas get a lighter application of lubrication.
Dry will cause more problems than dirty.
I don't put lube directly on the slide rails, but on the frame rails. If you put it on the slide rails mounting the slide on the frame will push it to pool up front off the rails.
Last edited by PX4 Storm Tracker; 12-09-2019 at 10:57 AM.
If your safety lever is sticking you can put a drop or two of oil in the back of the firing pin plunger hole at the rearmost of the slide. This will put it on the left lever shaft and free it up. I have also seen where a dirty firing pin channel causes the lever to hesitate climbing over the firing pin.
This spring is another name (marketing) for the Cougar D spring. In measuring poundage there is a translation matrix here. The commonly used Wilson Combat 12# spring (offered with a polished end from LTT) is for a model 92. It will deliver more poundage when put in a PX4. A Cougar D spring is the same length and part as a PX4. It will be the equivalent delivered strength initially.
Beretta estimates the stock PX4 spring @20# and the D spring @16#.
Normally a D spring will give an initial double action pull drop to 8# and single action to 4#. This is about the same as the 12# M-92 spring.
Last edited by PX4 Storm Tracker; 12-09-2019 at 11:39 AM.