Changing Sig Hammer Springs?

[doh31672]

I was reading on-line about how changing out the hammer spring on a Sig is an easy mod that will lighten the trigger pull on an already nice trigger, both in DA and SA. From what I read, the stock Sig trigger spring is about 21#, and people have gone as low as 17# without getting light strikes. I was thinking about trying some 18# springs, on a couple P226s and a P220.

Any thoughts or experiences pro or con?

[TKM]

Watch youtube videos a few times.

Getting the hammer strut back in correctly is right on par with taking apart and re-assembling a Ruger MKIII.

It is easy once you know how.

It isn't easy getting to know how.

[CAGLS]

With lighter hammer springs, does anyone make an extended firing pin for Sigs for a more reliable ignition?

[aca72]

Keep it stock to make it rock.

[Sig Marine]

The difference in pull weights accomplished by changing mainsprings is sometimes minimal and some don't really even notice the difference. If you want to change springs and this is a range gun ONLY, going to a lighter spring and experiencing light primer strikes is merely an inconvenience. If, however, this gun is ever used for defensive purposes, I would suggest, as would most reputable gunsmiths, leaving the stock springs intact. The last thing you want is a light primer strike at a critical time.

Polishing certain surfaces, hammer, sear, etc, to reduce friction, i.e.trigger job, will do the most to reduce pull weights without changing mainsprings and keep your gun reliable. Sig offers an affordable service called the AEP, Action Enhancement Package, which is satisfactory for most people. If wanting more, there are gunsmiths that specialize in working on Sigs that can accomplish more but it comes at a higher price.

Semper Fi...Sig Marine (Certified Sig Armorer)

[Fritz265]

Keep it stock to make it rock.

Exactly. I don't see the point in changing something that isn't broken. Sigs are great because they come out of the box great. The stock grips suck so I suggest a Hogue upgrade but that's it.

[Yerman]

I put one in mine (I think it was 17#). No light strikes but not a huge difference in the trigger. I ended up sending mine to http://grayguns.com. If you are looking to improve the trigger he is your man. Not cheap but the best gunsmith for Sigs.

If Bruce is out of your price range, the single best upgrade you can make to your sig is a SRT kit (if you don't already have it) and ammo. SRT's frequently show up for sale on sigforum.com if you can't find one.

Also consider some snap caps and lots of dry fire to improve both your DA and SA pulls.

[mjmagee67]

I have changed the springs in my 2 P226's one has a 17# and the other has a 18#. I've noticed a lighter trigger pull on both double and single action I like it better with the lighter springs. As far as light strikes, I've gotten a few on my gun with the 17# spring, 4 or 5 in 1000 or so rounds! with the 18# spring I have not gotten one in thousands of rounds. I would go with the 18# spring, that's what the other gun will get when I get around to ordering it!!!

YMMV and if it is a self-defense gun it's up to you!!!

[dragon7]

Swapped out springs on my 226 recently. It's a 20 year old gun and just thought I should. Wasn't having any problems I should add. I did use the 18 lb. spring for the swap and to date have not had a missfire due to light hits thru at least 3K factory rounds.

[9mmepiphany]

the single best upgrade you can make to your sig is a SRT kit (if you don't already have it) and ammo. SRT's frequently show up for sale on sigforum.com if you can't find one.

The SRT won't affect the weight or feel of the trigger pull

[neouser]

I wouldn't swap out parts on a defensive pistol. DA's love to bring up modified guns in court.

[Striker]

I was reading on-line about how changing out the hammer spring on a Sig is an easy mod that will lighten the trigger pull on an already nice trigger, both in DA and SA. From what I read, the stock Sig trigger spring is about 21#, and people have gone as low as 17# without getting light strikes. I was thinking about trying some 18# springs, on a couple P226s and a P220.

Any thoughts or experiences pro or con?

I remember reading once where Kyle Defoor said some of the guys on the teams are running 18lb mainsprings without any problems. Those guys obviously test their gear extensively, so personally, if I wanted to try it, I would.

[Yerman]

The SRT won't affect the weight or feel of the trigger pull

I agree that the weight will not be affected by an SRT, but the feel of the trigger....

I am talking about the short reset trigger (new sear and safety lever http://www.midwayusa.com/product/567...sig-sauer-p226 ) not a short reach trigger (http://www.sigsauer.com/sigstore/Sho...9&productid=91).

The short reset trigger completely changes the characteristics of the trigger reset and follow up shots thus in my opinion changes the feel of the gun.

For a noticeable reduction in trigger pull weight and increased smoothness, send your gun to Bruce Gray. For a cheap upgrade that will have a significant impact in the way your trigger feels/works, get an SRT kit and a reduced hammer spring. Just don't expect the hammer spring to make a significant change in pull weight.

[doh31672]

Thanks everyone. I installed an SRT, and the reset is noticeably shorter. I will try the 18#, as compared to the stock 21#, but will report back if I can note the difference.