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Gray Guns P320ST Straight Trigger

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Gray Guns P320ST Straight Trigger

Gray Guns P320ST Straight Trigger for Sig Sauer P320

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Gray Guns

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P320 Trigger – Straight – Specifications and Features

    Specifically intended for use only in P320s that have gone through SIG’s Voluntary Upgrade Program.
    Reduces total trigger pull weight approximately 2 pounds below factory-stock for the standard series, and about 1.25 pounds for the X-Five variant.
    Designed for use with the SIG factory trigger bar spring
    Minimal over-travel, stops at optimum trigger face angle
    Smoother takeup and release sensation
    Preserves factory sear engagement and mechanical safety values
    Proven reliable and durable for high-volume professional use
    GG triggers are externally comparable in appearance to the factory part
    Limited lifetime warranty on materials and workmanship

Fit Guide

Fits all variations within the P320 (upgraded) system. Including all sizes, TACOPS Carry, X-VTAC, X-Carry, X-Five and RX versions.


These parts are intended for installation by a qualified armourer or gunsmith. In some cases professional fitting will be required by a trained, qualified armorer/gunsmith who is very familiar with the pistol’s action. This is due to the varying tolerances present in all mass-produced firearms. Although kits fit with no issues in a great majority of pistols, Grayguns is unable to guarantee perfect functionality in every instance. Grayguns does offer installation services for all parts kits we offer.

Specs - More Info
Additional Info
UPC Code 850002435009
Manufacturer Gray Guns
Accessory Rail Not Applicable
Customer Reviews (2)
Works as claimed
By far the easiest to in stall upgrade with the most gain, without going into the internal of the FCU. Excellent reliability so far. Review by Nico (Posted on 3/24/2020)
I feel like this improves my feel & efficiency of the trigger. As the easiest variable to "upset" the trigger press and consequently the pistol - I have no regrets - GREAT UPGRADE! Review by Gram (Posted on 3/20/2020)
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