SIG P-Series Custom Strut System – P226, P229

(23 customer reviews)


The Grayguns Custom Strut System fully supports the main spring, reducing friction, spring bowing, and fatigue. The design eliminates the double-action “crunch” felt in OEM pistols. This complete system also includes our custom P-Series Master Spring Set to help reduce your pull weight for full tuning options.

Designed for many SIG Sauer® P-Series Traditional DA/SA pistols, including the P226, P229, P228 and similar variants. Review our Fit Guide below.

In stock

SKU: SYS-SIG-226-STRUT Category: Tags: , , , ,


Bruce Gray designed our custom P-Series Fat Custom Strut System to help bring another Grayguns custom gunsmithing service to the drop-in parts market.

For more than 40 years, Bruce has been modifying factory struts to eliminate the typical double-action crunch caused by the sharp edges and tip of the strut.

The custom strut system strut fully supports the main spring, which reduces friction, spring bowing, and fatigue. The struts are cut using a precision EDM process, hand-finished, and heat-treated to the proper hardness.

A durable seat that is machined in-house is paired with the upgraded strut. It is made of aircraft-grade aluminum and anodized. These struts are indestructible and guaranteed for life.

This complete system also includes our custom P-Series Master Spring Set to help reduce your pull weight for full tuning options. The kit contains a 17-pound spring (red) and a 19-pound spring (blue).

P-Series Custom Strut System Fit Guide

The system is compatible with the E2 style grips and most older style grips. The design fits most of the following SIG DA/SA pistol variants:

  • P226
  • P228
  • P229
  • P225-A
  • P227

Our strut system does not fit the SIG P229c (P229 Carry) or P229c SAS.

Companion Products

Additional information

Weight .125 lbs
Package Dimensions 6 × 4 × 1 in

Share your thoughts!

4.96 out of 5 stars

23 reviews

Let us know what you think...

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One review with a 4-star rating

  1. jclaybackus79

    Very Nice

    jclaybackus79 (verified owner)

    I have loved my P226 SAO Legion since I first pulled the trigger. I wound up picking up a P229, and after deliberation, decided I wanted DA/SA and no ceracote for regular carry. I went with a 229 Equinox. (Side Note: I didn’t care for the looks of the Equinox slide up on purchase, so it got a black Pro Cut slide and a Bar-Sto SS fluted barrel – very nice looking pistol now.) I won’t lie though, I just couldn’t shoot the pistol like the 226 SAO or my other striker fired pistols – and I’m not only talking about the DA trigger pull, even my SA shooting was below my personal threshold of acceptability for a carry pistol. Very frustrating considering my love and luck shooting the P226 SAO, and considering my investment to date in the P229…..

    So, in comes Gray Guns. The ELS (flat trigger), plus fat strut, has transformed my ability to shoot this pistol significantly. My DA accuracy is now on par with what my SA accuracy was – not great, but quite respectable. And, my SA accuracy is on par with my p226 SAO shooting.

    The DA trigger pull is long, but smooth. I have long fingers, so no problem here, though others may feel differently. The SA trigger pull is exquisite for a DA/SA pistol in my opinion. Honestly, I am thinking that it is the flat trigger which has impacted my SA experience more than anything; pre- and over travel are dialed in near-perfectly and all of my other pistols have flat or near flat triggers, so getting away from the significant radius of the stock trigger must add up to what I needed. Once I have put another few hundred rounds down range without any hiccups, my P229 will definitely go into carry status, right where it was always meant to be.

    And, then there is Gray Guns! Wow, good folks, pleasant to deal with, quick shipping and good install videos. I am pleased to give them my business.

    So why 4 stars? It’s a bit pricey for what you get – the margin must be huge! But, R&D has costs. And, quality has costs. And, exclusivity has costs. And, I will spend the money again if I find myself in a similar situation. So, there’s my 2 cents on that.

    I will say to anyone with an Equinox, be advise that this nickel finish is a high gloss nickel finish – it does not match the nickel finish of the Equinox line. Nor does it clash – I was worried I would not like the looks of it. So, I said to myself, good thing (my) pistols aren’t about looks! Then, I installed it and found that it looks great – no problems at all with my opinion of the looks – I love it. Having the stainless Bar-Sto barrel peaking through the Pro Cut slide, the gloss nickel trigger and the flat nickel controls works quite well in my eyes, and those of everyone who has seen it.

    Thanks Bruce and Team

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Many parts sold by Grayguns - including but not limited to triggers, trigger kits, internal components and spring kits - are intended for installation by a qualified armorer or gunsmith who is familiar with the firearm.

Although kits fit with no issues in a great majority of pistols, Grayguns cannot guarantee perfect functionality in every instance.

Due to varying tolerances present in all mass-produced firearms, professional fitting by a qualified armorer who is familiar with the pistol's action may be required.

Grayguns offers installation services for all parts kits we offer. If you have any issues or questions about the installation process, STOP IMMEDIATELY and contact the Grayguns Customer Service Team.