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P290RS & Galloway Precision Parts

This is a discussion on P290RS & Galloway Precision Parts within the SIG Sauer Pistols forums, part of the SIG Sauer Forum category; I love both my P290RS', they're my EDC's when I can't carry my P250 hybrid. Had heard about Galloway Precision and their offerings for the ...


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Old 10-19-2013, 09:24 AM   #1
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Post P290RS & Galloway Precision Parts (Update: 11/01)

I love both my P290RS', they're my EDC's when I can't carry my P250 hybrid.
Had heard about Galloway Precision and their offerings for the P290 so decided to be the guinea pig and ordered both their "performance spring kit" and "22lb recoil spring w/stainless guide rod." (For the record, I have no association w/Galloway Precision except as a retail customer).

Since I have two P290RS', I could modify one and do a direct side-by-side comparison.

GP's Performance Spring Kit includes a hammer spring, firing pin spring and blocker spring. All are lightened and while the firing pin spring doesn't improve the trigger, it's supposed to prevent light strikes caused by the lighter hammer spring.

Replacing the firing pin spring and blocker spring is very easy, taking no more than a couple of minutes. The hammer spring is another matter, requiring more skill & effort than I felt comfortable with so I had my local 'smith do the installation.

Results: Since I don't have access to a trigger pull scale, this is subjective. Dry-firing both pistols, I couldn't really discern much difference between the modified and unmodified triggers. However, at the range it seemed the pull was smoother and a bit lighter.
Unfortunately, my "training" P290RS (dirty from a couple of hundred rds) started experiencing light strikes. At first I thought this might be ammo-related as the PMC I was using apparently has a reputation for occasional misfires (I've used thousands of rds of the their .223 w/o a hitch). Then, as I started experiencing light strikes w/other brands I thought it might be a dirty firing pin channel. I was surprised to discover the firing pin channel had very little crud in it.
So, I'm left w/the conclusion that GP's hammer spring is just too light for reliable ignition, even w/their lightened firing pin spring. However, I may keep the lighter firing pin spring in place for more positive ignition.

With the 22lb recoil spring, I bought the optional stainless guide rod as the factory polymer guide rod supposedly won't handle the heavier recoil spring (don't know if this is true or not but decided to go w/the stainless guide rod anyway as part of the experiment).
After installation, discovered the slide was a little harder to rack by hand but not significantly so. Shooting side-by-side w/my unmodified P290RS doing Mozambique drills at 5yds I didn't think there was much difference between the two. However, when I checked the targets I was pleasantly surprised to find my groups were both tighter and more centered w/the 22lb spring. Paying extra attention while shooting again, I found I was back on target a little quicker w/the sights better aligned after recoil.
I read somewhere that a heavier recoil spring may increase battering of the frame/slide but for me the increase in performance outweighs the possibility of accelerated wear (YMMV).

Bottom line: I can't recommend the Performance Spring Kit. While I like what it did for the trigger pull, it's not worth sacrificing reliability for. Perhaps someone else's P290RS might function more reliably than mine w/the spring kit but I'm putting the factory hammer spring and blocker springs back.

I like the 22lb recoil spring. Using the heaviest load I had on-hand (147gr std pressure) there was a significant improvement in both speed and accuracy for me (again, YMMV) so will be keeping it unless I discover a major downside. I'll keep the stainless guide rod as well, "just in case".

Link: P290 Performance | Galloway Precision

Tomac

Last edited by Tomac; 11-01-2013 at 07:16 AM.
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Old 10-19-2013, 11:29 AM   #2
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Thanks for the write-up, that's very useful for us P290RS owners.
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Old 10-19-2013, 11:31 AM   #3
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Thanks for the write-up, that's very useful for us P290RS owners.
You're welcome. I've already emailed GP about the light strikes, I'll post what I hear back from them.
Tomac
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Old 10-19-2013, 03:45 PM   #4
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Thanks for the time and post. I have been wondering about the kit myself but my gun has run very reliably and I have been fairly accurate with it so I have not had the courage to screw with the gun. I may have to get the rod and recoil spring though.
Thanks again, Frank.
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Old 10-19-2013, 05:47 PM   #5
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Thanks for being the guinea pig, I believe I won't change anything on mine, other than the Cerakote job.
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Old 10-20-2013, 03:09 AM   #6
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Thanks for the info.
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Old 10-20-2013, 04:43 AM   #7
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appreciate the testing and sharing the results...

Bill
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Old 10-20-2013, 01:01 PM   #8
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I appreciate the time and effort.
I thought about getting the spring kit, but I was worried about light strikes.
From your experiences it seems likely.
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Old 10-20-2013, 01:29 PM   #9
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I appreciate the time and effort.
I thought about getting the spring kit, but I was worried about light strikes.
From your experiences it seems likely.
I don't consider the experiment a total loss as I learned something new and I'm still using the lighter firing pin springs w/the factory hammer spring to prevent any future light strikes.
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Old 10-21-2013, 05:11 AM   #10
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I've said it before but, I trust Sig knows what they're doing. Otherwise I wouldn't buy their products.
On such a compact pistol in a service caliber. Everything has to function within very close tolerances.
Messing with recoil and main springs can mess with the proper timing. Unless your tuning to a very specific load? It probably is set up to work with the broadest spectrum of weights and pressures.

However given some peoples issues with light strikes? A lighter firing pin spring could be good insurance? I wouldn't trust or accept a P290(RS) that experiences light strikes. But, mine works and if it ain't broke...

I've considered the stainless guide rod. I am skeptical of the polymer one. I'll just have to trust them on this one. So far so good.
I have seen other guns that experience excessive and unusual wear by replacing the polymer rod with steel. I can't say if that applies here, though?

If one really wants a better trigger? A trigger/action job is what's needed.
I lighter main spring will increase chances of light strikes and allow the slide/barrel to unlock earlier. Increased dwell time allows more pressure to bleed off. Thus the slide doesn't come back as hard.

Last edited by hariph creek; 10-21-2013 at 05:19 AM.
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Old 10-21-2013, 05:19 AM   #11
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Both my P290RS had no problems cycling 115gr-147gr loads w/the 22lb recoil spring. However, I will be keeping an eye out for unusual wear from either the recoil spring or stainless guide rod (which I keep well-lubed).
As you suggested, I am keeping the lighter firing pin springs installed as a precaution against light strikes.
Tomac
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Old 10-21-2013, 07:01 AM   #12
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With your lighter firing pin spring. Check the primers on your spent brass. Make sure the firing pin doesn't leave a "drag" mark. If so, the firing pin isn't returning to it's channel fast enough. In that case definitely return the original heavier spring. This will generally apply to "brisker" loads that cycle the action faster.

Remember too, the term "recoil spring" is misleading. It's really a "return to battery spring" and to a lesser extent "remain in battery spring." It's your main/hammer spring that's slowing your side down. As the firing pin stop "rides" the hammer back.
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Old 11-01-2013, 07:16 AM   #13
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To be fair to GP, after more testing & talking w/SIG it seems that the PMC & GECO ammo may be the primary cause of the misfires I've been experiencing.
While it would be easy to blame the P290RS (Hey! My "Brand X" pistol eats everything!), *both* P290RS' exhibit the same problem w/the same ammo (ie: no problems w/Hornady's Critical Duty or American Eagle FMJ, but occasional misfires w/GECO & more frequent misfires w/PMC and even my P250 misfired once w/PMC).
With the factory hammer spring & GP lighter firing pin spring installed, misfire rate is about the same w/both pistols & both types of ammo so I don't think I can blame the GP lighter hammer spring.
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Old 11-03-2013, 05:40 AM   #14
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Thanks for the information about the Galloway 22# recoil spring. I've been tempted to buy a couple of these. I don't find SIG factory recoil springs for the P290 for sale anywhere online and I like to keep a few spare parts on hand. Nice to know the springs function well and may actually improve functioning.

As for the guide rod, the the first thing I did when I got my P290 was to replace the plastic guide rod with a Bedair. I actually bought the Bedair stainless guide rod before I bought the P290. It's something I do to every pistol that comes with a plastic rod. Call me overly cautious but I feel more confident in a steel guide rod than a plastic one.
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Old 11-03-2013, 06:50 AM   #15
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Thank you Tomac for all the information and the effort put forth to bring it to all of us.
This is good information !!

After reading this makes me wonder, has anyone asked Sig about doing trigger/action job on their 290 ??


Love this forum. I've learned so much from reading these pages.
Thanks to all. You are good people.
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