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Sig P210A - Changing the Trigger Return Spring & Sear Adjustment

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Sig P210A - Changing the Trigger Return Spring & Sear Adjustment Empty Sig P210A - Changing the Trigger Return Spring & Sear Adjustment

Post by tovaert on 2/25/2020, 6:45 am

FYI...some instructions, should you have an interest in increasing or decreasing the trigger pull weight. Also some rough guidelines for adjusting sear engagement.

https://www.dropbox.com/s/x5oy76nzffp4ewl/Installing_Trigger_Return_Sear_Springs_P210A_Rev2.pdf?dl=0


Last edited by tovaert on 8/25/2020, 8:55 pm; edited 1 time in total

tovaert

Posts : 101
Join date : 2018-11-28

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Post by tovaert on 8/19/2020, 10:21 am

I've completed a new (Revision 2) instruction guide for swapping out both the trigger return spring and the sear spring, on the Sig P210A (Target or Standard). Recall this "experiment" was aimed at increasing the trigger pull weight to 4# for EIC competition, without simply winding up the mainspring using the adjustable barrel nut. In my first iteration, I used a trigger return spring that was a bit to strong. This caused one to pull through the release with little to no sear "feel" when the sear adjustment pin was set for a ~4# pull weight. Since then I've experimented with a slightly lighter trigger return spring, in conjunction with a slightly heavier sear spring. To me this is much more desirable, as this combination produces a two-stage trigger with a distinct "wall" followed by a crisp release (similar to my Geissele HS match rifle trigger). The spring specifications are towards the end of the file, and I have some available (see instructions). Of course, one could also proceed in the reverse direction, and decrease the factory trigger pull weight (as well as change trigger feel and sear engagement), towards the 2.5# CF weight limit. It seems the factory triggers are in the 3 to 3.5# pull weight vicinity. I have not experimented with lighter springs, however, the necessary dimensions and specifications for the trigger return and sear springs can be garnered from the supplier website (noted in the instructions). Any questions or comments, feel free to message me. Here it is:

https://www.dropbox.com/s/x5oy76nzffp4ewl/installing_trigger_return_sear_springs_p210a_rev2.pdf?dl=0

tovaert

Posts : 101
Join date : 2018-11-28

kc.crawford.7 and bpettet like this post

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Post by bpettet on 8/19/2020, 3:51 pm

I've been looking for data on this subject.  Great tutorial!  PM to you.

bpettet

Posts : 216
Join date : 2017-05-24
Location : Ft Worth, TX

http://www.stratos2.com

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Post by 1bayouboy on 8/19/2020, 5:39 pm

Excellent document!  I sent you a PM on the springs.   FYI Grainger has a huge selection of springs.   I'll take one of each of the ones you got to share your cost.

1bayouboy

Posts : 12
Join date : 2020-08-19
Location : Charleston, SC

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