Galloway Precision Sig P290 Upgrade

[morrcarr67]

So my brother bought the compete upgrade kit from Galloway Precision. He was too afraid to do it himself so I did it for him.

I thought I had everything right but he went to the range today and had some problems with it.

When I got it all back together I could dry fire it all day long and it would reset and the hammer would fall.

At the range he could pull the trigger and the hammer wouldn't fall. He also had some failures to extract.

Any help would be appreciated.





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[ar15barrels]

So my brother bought the compete upgrade kit from Galloway Precision. He was too afraid to do it himself so I did it for him.

I thought I had everything right but he went to the range today and had some problems with it.

When I got it all back together I could dry fire it all day long and it would reset and the hammer would fall.

At the range he could pull the trigger and the hammer wouldn't fall.
He also had some failures to extract.

This is why we disregard bench testing.
You can't reliably test a dynamic system in a static state.

[SkyHawk]

What parts are in the ‘complete upgrade kit’? Is this a 290RS or older 290?

[morrcarr67]

It's a 290rs.

This is the kit. https://gallowayprecision.com/sig-sa...290rs-pistols/

[SkyHawk]

If the hammer wont fall, I'd look at the over travel screw in trigger - could be adjusted too long. If it is not resetting, pre-travel adjust may be too much. I'd widen the trigger travel range by adjusting both of those a tad (1/4 to 1/2 turn looser from what works on the bench) and test again.

I would also put the stock recoil spring/rod back in for testing and see if that helps the extraction issue, or test with hotter ammo. That new recoil spring may be setup for hot defense ammo and range ammo might not have the gittyup it needs.

Of course if you go back to the stock recoil spring, now your hammer spring may be too light. Should be OK for a quick test with range ammo but be careful with hot ammo and the stock recoil spring until you figure out which hammer/recoil springs you're going to stick with.

PS - let me know what happens. I have that Antioch trigger (no springs) in my 290RS but never fired it live yet.

[morrcarr67]

If the hammer wont fall, I'd look at the over travel screw in trigger - could be adjusted too long. If it is not resetting, pre-travel adjust may be too much. I'd widen the trigger travel range by adjusting both of those a tad (1/4 to 1/2 turn looser from what works on the bench) and test again.

I would also put the stock recoil spring/rod back in for testing and see if that helps the extraction issue, or test with hotter ammo. That new recoil spring may be setup for hot defense ammo and range ammo might not have the gittyup it needs.

Of course if you go back to the stock recoil spring, now your hammer spring may be too light. Should be OK for a quick test with range ammo but be careful with hot ammo and the stock recoil spring until you figure out which hammer/recoil springs you're going to stick with.

PS - let me know what happens. I have that Antioch trigger (no springs) in my 290RS but never fired it live yet.

Well I did think about adjusting the trigger stop screw. It's just weird that it works when dry firing it.

I also thought about putting back in the standard recoil springs but keeping in the SS guide rod because i'm sure that he's going to want to keep that.

Question? Why would the recoil spring affect the hammer spring?

[SkyHawk]

Question? Why would the recoil spring affect the hammer spring?

The recoil spring does not affect the hammer spring. But the hammer spring and recoil spring both combine their powers and work to resist the rearward slide movement when cycling. A lighter recoil spring usually calls for a heavier hammer spring, and vice versa - if the same amount of slide resistance is to be achieved. That is the theory of course, not always the practice.

However in this case we know the new recoil spring is heavier and the new hammer spring is lighter. That makes sense, to equal out the changes. So if you go back to the stock recoil spring, now you have a lighter hammer spring and have made no change to the recoil spring. That means there is now less combined spring to resist the slide when cycling, which means it is going to hammer just a bit more on the frame. There will be more rearward velocity on the slide, and perhaps slight overall timing change etc.

It may not be enough of a change to worry about, but something to consider. Usually if you are just knocking a pound or two off the hammer spring it doesn't matter much, but that depends a lot on the design of the hammer system and the strength of the original hammer spring.

Anyhow, I also find it interesting that the gun works on the bench but not firing, but you also introduced another variable: the operator. Unless you also personally do the live fire tests, we have to consider he may be short stroking the pull or the release - and maybe limp-wristing to cause various feeding/extracting issues.

Anyhow, I will have to get out and try my Antioch trigger sometime to be sure it works at the range and not just the living room

[morrcarr67]

The recoil spring does no affect the hammer spring. But the hammer spring and recoil spring both combine their powers and work to resist the rearward slide movement when cycling. A lighter recoil spring usually calls for a heavier hammer spring, and vice versa - if the same amount of slide resistance is to be achieved. That is the theory of course, not always the practice.

However in this case we know the new recoil spring is heavier and the new hammer spring is lighter. That makes sense, to equal out the changes. So if you go back to the stock recoil spring, now you have a lighter hammer spring and have made no change to the recoil spring. That means there is now less combined spring to resist the slide when cycling, which means it is going to hammer just a bit more. on the frame. There will be more rearward velocity on the slide, and perhaps slight overall timing change etc.

It may not be enough of a change to worry about, but something to consider. Usually if you are just knocking a pound or two off the hammer spring it doesn't matter much, but that depends a lot on the design of the hammer system and the strength of the original hammer spring.

Anyhow, I also find it interesting that the gun works on the bench but not firing, but you also introduced another variable: the operator. Unless you also personally do the live fire tests, we have to consider he may be short stroking the pull or the release - and maybe limp-wristing to cause various feeding/extracting issues.

Anyhow, I will have to get out and try my Antioch trigger sometime to be sure it works at the range and not just the living room

This too has come to mind. One, he doesn't have as much experience with guns as I do. Two, even though we wear the same size wedding bands he has much larger hands than I do. Thus making it harder for him to get a good hold of it.

I don't seem to have any trouble holding on to mine.

[mtenenhaus]

i just saw this posted on another website, hope it's ok to link:

https://sigtalk.com/sig-sauer-pistols/329174-anyone-carry-p290rs-anymore-3.html

someone discusses a somewhat similar challenge and the company's recommendation was to polish one of the arms.

I'd suggest calling Galloway as it seems their warranty has a very strict time line.