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New Sig P6 Range Report/ Mainspring Question

This is a discussion on New Sig P6 Range Report/ Mainspring Question within the SIG Sauer Pistols forums, part of the SIG Sauer Forum category; Hey Guys, Just wanted to show my new P6! I picked it up last friday from my FFL, and took it out to the range ...

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Old 08-06-2012, 07:09 PM   #1
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New Sig P6 Range Report/ Mainspring Question

Hey Guys,

Just wanted to show my new P6! I picked it up last friday from my FFL, and took it out to the range today.

I had a few flyer's, but overall I feel like I shot well with it. But MAN!!!, that DA trigger pull..... I knew what to expect before shooting but that is a stiff trigger.

Does anyone have suggestions for what mainspring# to change to? The Sig P225 factory 24lb or maybe a Wolff 19lb?

Also, how easy is it to swap them out? I was thinking of getting the Sig Armorer's DVD and trying it myself but my ability to tinker with mechanical things is a bit limited. For reference, I have built my own AR, but it took several hours chasing down flying detents and springs...
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Old 08-06-2012, 07:10 PM   #2
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Oh I forgot to mention, I shot 75 rounds, no FTF or FTE or any problems
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Old 08-06-2012, 07:15 PM   #3
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By mainspring I assume you mean the recoil spring and yes its easy to change but IMO I would stick with the factory spring strength. If you mean the hammer spring its a little more tricky but can be done.

YouTube is our friend:

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Old 08-06-2012, 07:34 PM   #4
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I thought mainspring was another name for hammer spring, but I was talking about the hammer spring.
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Old 08-07-2012, 09:48 AM   #5
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C'mon guys, I know I'm late to the P6 party, but I'd really appreciate some feedback.

Does anybody have reliability issues after changing the hammer spring to the P225 factory or a Wolff 19lb or 20lb?
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Old 08-07-2012, 10:06 AM   #6
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a nice p6 & a good shooter it looks like.

if you're going to hide the last 3 of the s/n on the frame, you better cover up the 3 on the barrel & slide too.

they are the last 3 of the s/n.

my '81 p6 was a good shooter too, gone to make room for other sigs.
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Old 08-07-2012, 10:50 AM   #7
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I realized that I missed the other two after I posted, but oh well

Did you ever change out the hammer springs yourself or send it into Sig Sauer for an action job?
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Old 05-03-2013, 07:05 AM   #8
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Originally Posted by suhw33t View Post
C'mon guys, I know I'm late to the P6 party, but I'd really appreciate some feedback.

Does anybody have reliability issues after changing the hammer spring to the P225 factory or a Wolff 19lb or 20lb?
From what I've heard, the 19-lb works the best (it's standard on the P225). Anything lighter and you run the risk of light primer strikes.

BTW - nice P6 - very little wear, compared to most I've seen.

I just ordered one from GB - found out after the auction ended it's a crapshoot as to what exactly I'll get; the item was relisted with the same photos after I bought mine The seller has excellent feedback, though; so we'll see . . .

If SIG has their annual Fathers Day discount on the Service Package, I'll probably go that route, and request a 19-lb main spring. Depending on the condition, I might have the slide re-blued while it's there, too ($99). Then it's getting some Marschal grips

Yeah, I know - nothing like turning a perfectly good $400 gun into a $750 gun . . .
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Old 05-03-2013, 01:29 PM   #9
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good info. Although I don't really have a problem with the stiff DA trigger of my P6, it might be nice to have a slightly easier first shot. Good to know that the change of hammer spring will not affect the overall function and reliability.
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Old 05-03-2013, 04:29 PM   #10
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Since this is about my first post on this forum, I took a few minutes to dig my foxhole before responding.
I can hear the outcry already: "Light primer strikes!"
I long ago swapped out my P6 hammer spring for a 14# Wolf spring. Instant new gun. Over 1K reloads with Rooskie primers (Tula), I have NEVER had a FFT do to a light primer strike.
Buy a set of springs from Wolff, watch the YouTube videos, put th frame in a large plastic baggie (so when the springs and parts depart the frame, you'll be able to easily find them in the bag, instead of crawling around the floor looking or the parts which seem to leave the assembly about 1,200 FPS).
You may find a 16# spring will work best for you. YMMV. But it will seem like you had a high dollar trigger job done on the wonderful Sig P6.
Shoot and enjoy.
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Old 05-03-2013, 07:35 PM   #11
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suhw33t, you can choose to take whose ever advice you choose, however, you are correct that the P225 mainspring is 24# and that is the only replacement one you will get for your P6 from Sig. There were many who reported 100% reliability with the 19# Wolff spring, which seems to be the most popular, on another Sig forum and a few who reported occasional light strikes. Or you can go with the sample of one of Detachment Charlie and go with the 14# Wolff spring (although his advice to get a set of springs is good if you can afford it, but swapping them is a pain). I chose to go with the 22# Wolff spring and have an acceptable for me DA trigger and 100% reliability.

I guess it comes down to what you plan to do with your P6. Would I carry a P6 with a 14lb spring? NO. 19#? MAYBE. 20# or 22#? YES.
On a range gun a 16# spring might be kind of fun.

Last edited by wgsigs; 05-03-2013 at 07:50 PM.
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Old 05-04-2013, 05:37 AM   #12
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The standard P225 spring is 24 lbs. (P6 is 28 lbs.), and if you are carrying, I wouldn't go any lower. The lighter springs work fine in a nice clean pistol, but if dust and grime gets in the pistol, which is possible / likely when carrying, then toss a coin to know whether it will fire when it is supposed to, with the lighter springs.

To decrease the pull a little more, replace the trigger with a P225 trigger. The holes are closer together giving about a 5 - 7% leverage advantage over the P6 trigger. (We use a similar technique when we do a High-Torque Trigger modification to the P-series Sigs, and we get a 15 - 17% torque advantage on the P6, a little less, 13 - 15% on other models, except the P239 where we get 10 - 12%, all with the standard springs.)
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Old 05-04-2013, 10:29 AM   #13
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Check out this link: Springs for SIG-SAUER (SIGARMS) P-220 Semi-Auto Pistols

I plan on getting the hammer spring package so i have a few to test. I have heard that the 17LB spring has worked for some. Of course every gun is different so I plan on starting with the 17LB spring and working my way up until i get a good balance of trigger pull and of course primer strikes!
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Old 05-14-2013, 04:07 PM   #14
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My GF and I have matching Sigs. Mine a P225, hers P6. She bought hers (while we were apart) years after shooting mine and it being the only "big" gun that fit her her tiny hands.
We get back together and are comparing guns, buying accys and such, and I realize there is in fact a difference between "the twins".
She can barely reach, let alone manage the DA pull on hers with her little t-rex arms and fingers bless her heart.... dont get me wrong. Shes by no means weak. Like our Sigs, powerful thing come in small packages is all.

A quick search led me first to the factory SHORT TRIGGER Not to be confused with SRT. I ordered one and litteraly installed it with two tools I had in my kitchen at the time in about 5 minutes. It took longer to wrestle the Hogue Handall off and on....

It was a huge improvement for her. Side by side, I prefered it too.

The next thing was swapping her strut/mainsprings for my *slightly* lighter P225 assy. Although not as dramatic, we knew we were headed in the right direction.

One more trip to the interwebz and I had ordered enough parts to short trigger AND light spring BOTH of our guns. Rather than play guessing games and risking light strikes, I did some math, and research about spring weights, DA/SA pull and break, etc. and settled on 20lb Wolf main springs.

Now, I am NOT a Sig Armorer, but if you can watch youtube, and handle a screwdriver, a pair of pliers, and a couple of beer, you can do this yourself. Just be careful and wear eye protection and try not to curse too much when dealing with heavy springs, small roll pins and tight places. I was able to compress the spring on the strut with the retainer while the GF got the roll pin started. Then I pressed it home with the same pliers.

15 minutes later and we had TWO P225s with what would fool you for $175 trigger jobs...

A trip to the range confimed that they would fire everything we fed them except 2 out of 150 rds of shitty, overpriced reloads...

I bought all my parts from I cant say enough good things about their customer service.
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Old 05-14-2013, 06:07 PM   #15
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I'm new to the forum, first post, but have had a P6 and a P226CPO for about 3 1/2 years. Last fall I switched the main/hammer spring on my P6 to a standard P225 spring. Thought about a lighter Wolff spring, but decided to just go with the stock P225 spring. For the cost of the spring I figured I wouldn't be out much if I decided to go to a lighter Wolff spring later.

The 4 pound difference between springs made a very big difference in the DA pull. Now my P6 DA is very similar to my P226 DA. Probably just a little heavier, but hardly noticeable. Didn't seem to affect the SA pull at all

My son helped with changing the spring. With two people it is really pretty easy. One compresses the spring and the other removes/replaces the pin.

I knew the P6 and P225 hammers were different, with the P6 hammer being lighter, but I didn't know there is a difference in the geometry. That would make sense why the P225 spring is 24#s Might have to change out the hammer also.

Great stuff on this forum! Thanks!

Last edited by spad124; 05-14-2013 at 06:10 PM.
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