Spring Reference Chart for Different LEM Variants
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  1. #1
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    Default Springs Reference Chart

    Over the past few months, I've seen a number of people asking about what spring(s) they need to convert between LEM variants. So I came up with this chart. It lists the spring part numbers that you will need to convert from one LEM variant to another.

    This is something that I have gathered from different sources over the past year and a half. I try to cover all the guns as accurately as I possibly can, but if you find something amiss, please let me know and I will update the chart accordingly.

    Abbreviations
    FPBS = Firing Pin Block Spring
    TRS = Trigger Rebound Spring
    HS = Hammer Spring
    DAO = Double Action Only
    LEM = Law Enforcement Modification


    Notes
    • For USP/HK45-series guns, if you are converting a stock V1 (DA/SA) to a Light LEM, the HS, TRS, and FPBS for the Light LEM should be identical to the DA/SA springs. In other words, keep all the stock V1 springs. The chart below, however, shows a different TRS (209266 instead of 214164) for the Light LEM because it is assumed that you are converting to a Light LEM from a Heavy LEM configuration, and not from a V1 (DA/SA), but either 209266 or 214164 can be used.


    Click on the chart to view full size.


    Last edited by TooSixy; 01-18-2019 at 02:24 PM. Reason: Updated with DAO springs
    DBray, P30, Cut_to_Cure and 3 others like this.

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    very cool.

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    Nice job TwoSixy! You've always been the trigger variant guru around here.

    Mods, this looks to be a valuable sticky!
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    Very nice,

    I've noticed that the 209 266 Trigger Return Spring is marketed by HKParts.net as a light LEM option for P30, P2000 and HK45..

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    Quote Originally Posted by barnaby View Post
    I've noticed that the 209 266 Trigger Return Spring is marketed by HKParts.net as a light LEM option for P30, P2000 and HK45..
    The compatibility list on HKParts is incorrect. This Light TRS is not for the P30. The legs are too short and will not fit the P30 properly.

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    Very nice work TooSixy.

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    A lot of work, this should be an updated reference sticky in the library.
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    Vote sticky also...oh vote not a good word for me now ;)... TooSixy i speak for most or all of us a big Thank's for this chart and being a very kind knowledgable member...people as you make this Forum my Favorite!!!
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    Good info, now moved & stuck.
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    Quote Originally Posted by TooSixy View Post
    The compatibility list on HKParts is incorrect. This Light TRS is not for the P30. The legs are too short and will not fit the P30 properly.

    That explains a LOT!
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