P2000SK Hammer Spring
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Thread: P2000SK Hammer Spring

  1. #1
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    Default P2000SK Hammer Spring

    New to HKs but not to handguns.

    Is it possible to install a different hammerspring in the P2000SK to lighten up the DA pull, without also significantly lightening the SA pull? If so, does anyone know what model the spring would come from?

    I'll be picking up my pistol tomorrow and specifically opted not to get an LEM variant, so that's not the info I'm after. I don't want to lighten it a ton, just by a couple of lbs. if possible.

    Thanks
    Last edited by spentcase; 06-28-2017 at 01:13 AM.

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    There is only one factory spring for the SK series so you're stuck with that one. Having said that, you could get a lighter spring (Wolff 10-lb comes to mind) and trim it to size.

    However, I would not attempt this if this was my carry or HD gun.

  3. #3
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    Generally, lowering the mainspring strength a few pounds is not going to affect the single action trigger pull much. The main danger, as TooSixy pointed out, is decreased ignition reliability. However, most combat autos have mainsprings designed to for the hardest primers out there, rather than what is common. That's why Beretta sells the 92D to police with a lighter mainspring and the USP match trigger also ignites most everything.

    I would get both a 10 lbs and 12 lbs and make a range project of it. Use Winchester, CCI ammo since they use less sensitive primers - or whatever you commonly practice with. Take a look at your before and after primer strikes.

    Don't expect a radical change - look for a detectable improvement rather than a transformation.


    Sorry that there isn't a set solution to this problem - you're going to be experimenting. If nothing works, you'll still have your factory spring to put back in.

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    1 million interwebz for @TooSixy and @Handy for stellar feedback
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    @spentcase
    I have been using the Wolfe 10lb spring for a while now with no light strike issues. I had to buy a 3 pack so I have two extra. If you want to try one out PM me and I'll drop one in the mail for you. As mentioned above it will have to be trimmed to size as they only sell one designed for the P2000, not the SK. It's easy. Just lay the stock SK spring next to the Wolfe spring and cut the Wolfe to size.

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    Thanks for the info Guys. Since Beretta was mentioned I'll say it is because of the availability of the D spring in my Berettas that I want to bring the weight of the HK down a bit. And it's also why I deliberately decided not to go with the HK LEM (V2) configuration, since the V3 trigger config is very similar in functionality and weight to an unaltered Beretta 92/96/PX4/Cougar F trigger. And that is what I am used to, though I do have D springs installed in place of the factory spring.

    I also appreciate the "pay it forward" approach to helping others out. I'll send you a PM DamnYankee, and perhaps I can do something similar to help you or someone else here on this board.

    edit: Just learned that I can't send PMs to members until I have five posts. That shouldn't take long, and I'll send out a PM to you DamnYankee as soon as I can.
    Last edited by spentcase; 06-28-2017 at 02:33 PM.

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    Quote Originally Posted by spentcase View Post
    Thanks for the info Guys. Since Beretta was mentioned I'll say it is because of the availability of the D spring in my Berettas that I want to bring the weight of the HK down a bit. And it's also why I deliberately decided not to go with the HK LEM (V2) configuration, since the V3 trigger config is very similar in functionality and weight to an unaltered Beretta 92/96/PX4/Cougar F trigger. And that is what I am used to, though I do have D springs installed in place of the factory spring.

    I also appreciate the "pay it forward" approach to helping others out. I'll send you a PM DamnYankee, and perhaps I can do something similar to help you or someone else here on this board.

    edit: Just learned that I can't send PMs to members until I have five posts. That shouldn't take long, and I'll send out a PM to you DamnYankee as soon as I can.
    No worries. Shoot me an email at [email protected] dot com

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    Thanks again, I think I have enough posts now to PM you :)

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    HK Parts is listing an 11LB hammer spring that should be available soon. Though not specifically for the P2000SK/P30SK it is another option to try for those who want to try trimming to size.

    https://www.hkparts.net/shop/pc/view...7&idcategory=0

    An exciting new offering as a joint collaboration from the widely renowned pistol smith Lazy Wolf Guns & HK Parts! This custom spring was designed exclusively by master trigger smith Rick Holm at LWG where his custom spring line is used in all of his high grade custom Heckler & Koch action jobs for more than 4 years. Appropriate for use in competition or defensive pistols for maximum trigger pull weight reduction. This spring bridges the gap between the 10lb and the 12lb pound hammer springs, offering the end user more ability to fine tune the break weight of a pistol. Used with light springs through the rest of the pistol will drop the single action break weight to approximately 3.75-4lbs (SA/DA & LEM), and 8.5-9lbs on the double action. Works in both LEM models and standard Non-LEM models alike.
    "The strongest reason for people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government."
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  11. #10
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    Berettas have a "better" trigger system than the DA/SA HKs, so I wouldn't expect the same level of improvement with your SK. But having an idea how the standard 92FS and 92D mainsprings change the feel of the gun should be a good guide to the results you're looking for.

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