P-Series SAO Dual Adjustable Straight Trigger – P226, P229, P220

(6 customer reviews)


The P-Series Single Action Only (SAO) Dual Adjustable Straight Trigger is machined from bar-stock steel and includes over-travel and pre-travel adjustability.

This premium aftermarket trigger fits current and older model single-action only P-Series pistols, including the P220, P226, P229, and others. These triggers are approximately 10mm wide.

Ensure you review the description before ordering. 

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The P-Series SAO Dual Adjustable Straight Trigger is the straight-faced, premium aftermarket SAO version of our legendary SIG Legion triggers. This design includes over-travel and pre-travel adjustability.

The optimized trigger face pressure-wall angle provides an excellent single-action sear release and positive, ultra-fast reset control. In addition, ergonomics provide superior leverage and control.

showing difference between SAO triggersSAO Dual Adjustable Straight Trigger Details

  • Machined from solid steel
  • Carefully heat treated and finished in black oxide
  • Tight pin hole tolerances assure smooth, solid function.

The trigger is guaranteed for life against defects in materials or workmanship.

It comes with a hex key for use easy pre-travel and over-travel adjustments.

The trigger weight is about .83 ounces (23.45 grams)

Trigger Fit Guide

The trigger fits both current and older model single-action only P-Series pistols, including:

  • P220
  • P229
  • P226

These triggers are approximately 10mm wide. Therefore, at this time, we are not suggesting this trigger for guns equipped with the older style 8mm wide trigger openings.

This trigger may not be fully compatible with California-compliant or similar P-series pistol models equipped with a magazine disconnector, and Grayguns urges caution. We do not recommend deactivating any mechanical safety device.

This trigger will not fit SIG Pro, P225 / P6, P239, or West German P220s. This is because most of these triggers are a narrower 8mm width.

Additional information

Weight N/A
Package Dimensions N/A

Dual Adjustable Straight Trigger (SAO with Pin), Dual Adjustable Straight Trigger (SAO without Pin)

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5 out of 5 stars

6 reviews

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What others are saying

  1. steelera

    P220 10mm SAO

    steelera (verified owner)

    This is what my P220 10mm SAO was missing. I am one of those men who has long palms and medium length fingers, causing the operation of the standard curved trigger of the Legion 10mm to be just a little long for me to reach well. After adding in this trigger, my finger stays in the same spot every time I operate it, Couldn’t be happier!

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  2. Stephen Collins

    Great trigger

    Stephen Collins (verified owner)

    Put Grayguns trigger in my sig legion p226 sao and I love it

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  3. One person found this helpful

    Pre-Travel Safety Advice

    admiral_minell (verified owner)

    I just finished up installing this trigger into my new P220 Legion .45 SAO. I have installed the SAO trigger and other Gray Guns triggers into three other P-Series pistols before. All are excellent!

    A word of advice: When you install this trigger, you will still have plenty of pre-travel on the trigger pull. Don’t blame the trigger!

    I spent quite a while tonight tweaking the pre-travel set screw. For anyone trying to eliminate all take-up and make a twitchy M1911 trigger, you won’t be able to and please don’t try. This has nothing to do with the trigger; there are several internal safeties that leave margins of error to prevent any and all malfunctioning discharges or stoppages of the system. I found that at no set screw setting could I get it so wrong that the pistol would be in a dangerous state – it either works or it does not.

    Don’t modify your pistol out of factory specifications! I had several ideas I won’t share about ways I could tweak it some more and I promise any one of them will add me to a negligent discharge statistic! The P-Series pistols are beautifully designed and every last little part is precisely and deliberately crafted for your safety! If one of them won’t play nice with your set screw setting, back it off!

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  4. LyleHawkyard13

    So fine.

    LyleHawkyard13 (verified owner)

    A bit more work than installing a Da/Sa trigger but very much worth it.

    The lack of double action means you actually get to take up the single action pretravel. Very nice.

    This has a much more comfortable finger angagement than the factory curved I had on. The curved is just awkward. When I go to put my finger on this it just ends up finding the sweet spot where I would often flick the bottom of the lever on the factory curved.

    A welcome upgrade.

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  5. George Ibrahim

    Better feel and more consistent smaller groups.

    George Ibrahim (verified owner)

    I hesitated for a while before finally deciding to get this trigger, and I’m so glad I got it! Immediately noticeable is that the face of the trigger is flat as well as being straight (in contrast to the Sig Legion SAO trigger just being straight but having a rounded face) which gives a much more consistent pull straight back with much less tendency to push the sights off target left or right depending on finger position. My groups are almost half the size, and my inconsistency is pretty much gone.

    What’s funny is that I originally ordered this to reduce the take up, and that’s nice and as expected, but the biggest benefit is the much more consistent shooting. Would unequivocally recommend, and buy again. Install was a breeze too.

    Shipping was immediate from GG, and my shopping experience was flawless to boot!

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  6. 4 out of 4 people found this helpful

    Quick and easy install, outstanding fit and function

    gtekmitchov (verified owner)

    I installed the GG straight adjustable SAO into my SAO Elite P226 replacing the factory curved trigger. The job was quick and painless, and the results were excellent. I made a slight adjustment to the take up, and left the reset alone (it’s already as good as can be on this particular piece). The feel matches that on my Legion P229. Build quality was outstanding with a strong pin and excellent machining. Super comfortable for rapid fire with no hotspots. I saw a slight improvement in my hammer splits, from .16-18 to .14-16.

    I also had outstanding service, with the part arriving in just a few days, and before ordering I got good support from customer service to ensure I was ordering the right part.

    I’ve always enjoyed exceptional service from GG and this was no exception.

    (4) (0)

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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.