P320 Adjustable Straight Trigger

(28 customer reviews)

$94.00$99.00

This Grayguns P320 Straight Trigger features an adjustable design. It is the ultimate fire control refinement for the versatile P320 platform, embodying the best innovations from Bruce Gray’s continuing R&D program with SIG Sauer®.

Proudly American-made from precision machined tool steel, heat-treated, hand-finished, and gauged for perfect appearance, fit, and function.

Available in standard black oxide. Occasionally available in Titanium nitride (TiN) Gold, Nickel PTFE, PVD Coyote, PVD Blue, PVD Flat Dark Earth (FDE), TiCN Copper or other finishes. See the full description below.

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Description

Our P320 Adjustable Straight Trigger is designed for hard-duty use, with the toughness to outlast your pistol. Our P320 triggers are Grayguns Grade and guaranteed for life.

P320 Trigger Specifications

  • Straight-faced (flat trigger) design
  • Adjustable over-travel eliminates gross movement after the sear is released and reduces trigger travel to reset. The trigger preserves all manufacturer safety values.
  • Enhanced Leverage geometry reduces pull weight by 30% with stock springs
  • Smoother takeup, sear release and reset sensation
  • Optimal 90⁰ sear release
  • Supports Voluntary Upgrade rough handling characteristics for assurance and reliability

Competition Kit

Are you looking for a competition kit for your P320? We do offer a range and competition-only kit!

P320 Trigger Finishes

Finish availability will vary.

Black Oxide

  • Standard blued finish

Titanium Nitride (TiN)

A well-proven standard layer type through its balanced properties. The golden titanium nitride layer, abbreviated TiN, indicates the following properties:

  • High hardness and adhesion
  • Good chemical resistance
  • Good temperature resistance in air
  • Relatively low thermal conductivity
  • Attractive, golden color

Physical Vapor Deposition (PVD)
This state-of-the-art process creates a molecular bond to the trigger, resulting in a durable finish. The PVD finish should not rust, discolor or tarnish. Availability varies, but options include Gray, Blue and Oil Rubbed Bronze finishes.

Titanium Carbo-Nitride (TiCN) (Copper)
The TiCN Copper finish features high hardness, low residual stress, good abrasive wear resistance, and high reliability in dry operations.

Nickel PTFE
Electroless Nickel PTFE (Teflon®) is an advanced, self-lubricating composite coating with PTFE particles co-deposited in the electroless nickel layer. Provides a hard, uniform, self-lubricating coating for our premium aftermarket triggers.

P320 Trigger Fit Guide

It fits all variations of the P320 (upgraded) system, including the following models.

  • Standard P320, M17 and M18
  • XSeries models
  • XFive Legion
  • P320-XTEN
  • P320 MAX
  • X-VTAC
  • P320 Spectre Comp
  • P320 AXG models

Additional information

Weight N/A
Dimensions N/A

28 reviews for P320 Adjustable Straight Trigger

5.0
Based on 27 reviews
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1-12 of 27 reviews
  1. Nickel plated. This trigger is smooth, better than Sigs skeletonized. I have the Sig Armorers kit for the P320 and works well with that. It provides the same function as the armory craft sleeve and the sig armory overtravel spring but it does it better. You can precicesly dial in the overtravel.

    The trigger shoe design is probably as good as you can get for the P320. I chased a few triggers before landing on this one. Do yourself a favor start and end here.

    (0) (0)
  2. I replaced the curved trigger for flat trigger, I’m super happy with the swap.
    The Flat triggers have an advantage, faster shots and quick follow ups. I noticed the difference as soon as I tried it.
    Very pleased with the product.

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  3. Beautiful trigger, and with the competition spring kit, it’s perfect.

    So glad the guys at Grayguns were able to make both orders work – just awesome customer service.

    Shipped fast as always even with the holidays.

    (0) (0)
  4. Quality product, love the fit and finish. Totally changed the look and feel of my M-18.

    (0) (0)
  5. What a huge difference over the Sig flat trigger! The Grayguns flat trigger is so much smoother and breaks so much cleaner. This is my second one; after comparing the two on my P320’s , it was a no-brainer to swap out the OEM for this one.

    (1) (0)
  6. I did not use the adjustment part, but this trigger gave me the feel I was looking for. It has the crispness of the sig flat trigger and the smoothness of the sig skeleton trigger. With the factory springs in the trigger pulls around four pounds which is exactly what I was looking for. This still has the weight for defense and the feels great!

    (1) (0)
  7. This is a fantastic upgrade for any 320. I have put these in several 320s and 365s and will continue to in the future. Less pretravel, and zero overtravel with every pull. I don’t use tools, just my fingers to do the install, only using the provided Allen key to adjust the overtravel. If you are handy it shouldn’t be difficult after watching a disassembly and reassembly video. Just be patient.

    (0) (0)
  8. For those wondering if this trigger will fit on a Sig P320 XTen Comp, the answer is YES! That said, it is important to note that the installation is not the same as other P320 Triggers. When I reached out to Grayguns to find answers, they sent me a specific video on “How To” change out the trigger on the XTen. My only recommendation to Bruce Gray is that he post that video on YouTube with other videos so it does not take a phone call to customer support to install this trigger. All said, I got the trigger replaced in 30 minutes or so as the trigger spring on the XTen is bit finicky. Watch the video and take your time… it will work. If your not mechanically inclined, take it to your local gun shop and let them do it. Once replaced, my shooting experience with this new trigger was great!! Less free travel and a lighter pull (4.7 lbs) eliminated my occasional “pull to the right” shots. Finally, I do believe the trigger is the only weak feature of the Sig P320 XTen Comp and Bruce Gray and team solved that problem with flying colors!

    (0) (0)
  9. This replaced the stock trigger on my P320X. The reduced take-up and greatly reduced overtravel make this well worth the purchase.

    (0) (0)
  10. I’ve purchased his products for a while now to adjust the trigger pull on my P320s and it definitely makes a difference. Their triggers lighten up the trigger pull at least by 30% which make the firearm much more accurate. I stand by his products.

    (0) (0)
  11. Superb customer service that answered my emails promptly, both before and after the purchase. The P320 adjustable trigger replaced the skeletonized trigger that came with my X5 Legion and AXG Legion.. While the stock trigger weight and break are very good (for a production gun), the amount of over-travel is completely unacceptable. It was the first time in almost 40 years that I short stroke the trigger due to the excessive over-travel. Gray trigger completely eliminated over-travel and still have a solid wall and a clean break. Definitely a must-have upgrade for any P320.

    (0) (0)
  12. I installed my trigger the day it came in the mail. I have a heavier trigger spring, lighter sear springs, and lighter striker sping. This trigger has a very short pull and amazing reset. I also own the armory craft adjustable trigger and I like the gray guns version better. Both are great triggers but the gray guns trigger just feels better. I really glad I purchased this trigger.

    (0) (0)
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Disclaimer

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.