Apex Now Shipping Flat-Faced Trigger for Sig Sauer P320


LOS OSOS, Calif. – Apex Tactical Specialties is now shipping the new Apex Flat-Faced Action Enhancement Trigger for the popular Sig Sauer P320 series of pistols.

Designed as a direct replacement to the factory curved trigger, the new P320 Flat-Faced Action Enhancement Trigger is easily installed without the need for tools or fixtures. The flat design increases trigger reach to the natural resting position of the shooter’s finger and allows the shooter to position their finger lower on the trigger face to take advantage of the increased leverage.

The new P320 Flat-Faced Action Enhancement Trigger is now shipping and available for purchase from ApexTactical.com and Brownells.com and MidwayUSA. Dealers and can order the new trigger through RSR or by contacting Apex at dealer@apextactical.com or calling (805) 528-5250.

Features and Specifications:
– Direct drop-in replacement of factory curved trigger
– Works with Sig Sauer P320 model pistols in 9mm, .357SIG,.40S&W and .45ACP (updated info)
– Maintains factory drop safety values
– Allows shooter to position finger lower on trigger face for increased leverage
– Does not change trigger pull weight
– Easy, no tool installation
– Apex Part #: 112-020
– MSRP: $44.95

For more information on parts and services from Apex Tactical Specialties, visit www.ApexTactical.com, like Apex Tactical on Facebook or follow @ApexTactical on Twitter and Instagram. Instructional videos on the installation of Apex parts are available on Apex’s YouTube channel.



  1. Wally - July 17, 2015 @ 2:57 pm

    Received the P320 Flatty and after a 1 minute install, I can honestly say it FEELS like it reduced the reset. I’ve been a flat trigger junky for years on my 1911’s and my S&W M&P .45 and now the 320. Makes the SIG even more of a jewel to shoot. Thanks Randy and the crew.

  2. Chris H - July 17, 2015 @ 11:41 pm

    The first announcement states it fits all P320 models. This announcement states “not .45ACP” without an explanation. Brownells description states it fits the P320. Some clarification would be nice for us .45ACP owners.

  3. Apex Tactical Sig P320 Flat Faced Action Enhancement Trigger - TacticalExistence
  4. Vince O - October 16, 2015 @ 4:16 pm

    Is the unsuitability for .45 correct? Frames, slides and calibers all interchangeable – I’m scratching my head on this one.

  5. paul - October 16, 2015 @ 4:42 pm

    Initial feedback/input from contacts at Sig who tested an early trigger indicated there was an issue. We now have a P320 in 45 and have tested our trigger with it and found no issues. Go ahead and get one. If for some strange reason you run into an issue, call us and bring us up to speed because it would be news to us. Thanks!

  6. Joe B - December 19, 2015 @ 1:21 pm

    I am inquiring about the use of this flat trigger in the Sig P320 .45 as well. I have the trigger for the other calibers and it works great. Can this be used in the .45 or not? If not, what is the issue causing this? I see Paul comment we could however I contacted Apex yesterday and was given a written reply that it is not for the .45. Looking for some clarity as I’d like to use but not looking for any issues. Thanks in advance!

  7. LB - December 30, 2015 @ 9:20 am

    Will this also fit the Sig P250 given that both the 320 and the 250 are essentially the same setup?

  8. paul - December 30, 2015 @ 9:32 am

    No. It is not designed for the P250.

  9. Michael Jones - August 5, 2016 @ 7:13 am

    When will one be available for the P320 .45?

  10. jc - August 5, 2016 @ 5:54 pm

    Any chance of getting this in red?

  11. Brannon Dietrich - August 11, 2016 @ 9:05 am

    Want to know if this trigger will fit the sig p320 Subcompact model, as the trigger guard is smaller and rounded instead of square. Are there any know torment issues or problems

  12. paul - August 15, 2016 @ 11:18 am

    The current trigger does indeed work in the .45ACP.

  13. paul - August 15, 2016 @ 11:19 am

    Yes, the trigger works in the .45ACP models of the P320.

  14. paul - August 15, 2016 @ 11:20 am

    It does fit the .45ACP models.

  15. paul - August 18, 2016 @ 8:45 am

    Not unless you send it off to be Cerakoted.

  16. Cherwyn - August 29, 2016 @ 11:06 am


    I trust that you are well..

    I have a Sig P320 and would like to install the famous Apex Flat Trigger, I live in South Africa are you guys able to ship to South Africa.

    I look forward to hearing from you.

    Kind Regards
    Cherwyn Walters

  17. paul - August 29, 2016 @ 11:28 am

    We do not ship outside the U.S. You can contact Brownells to see if they ship to South Africa.

  18. paul - August 29, 2016 @ 11:30 am

    We’re not aware of any fit issues.

  19. Al K - September 11, 2016 @ 3:51 pm

    Are Sig Apex triggers available in other than black (IE. RED, BLUE, etc.)? If not, what paint is compatible with your factory finish?

  20. paul - September 21, 2016 @ 7:56 am

    It is only available in black. We’ve seen this trigger Cerakoted by some customers. You’d have to check around with various custom finishers to see what kinds of coatings would and would not work.

  21. Straycat - November 23, 2016 @ 7:45 am

    Is there a flat trigger design in the works for the 250?

  22. paul - November 23, 2016 @ 7:56 am

    No, there is not.

  23. Mike - November 27, 2016 @ 9:47 pm

    Will there ever be a “flatty” for a p226/227 9 and 45?

  24. paul - December 21, 2016 @ 8:08 am

    Not likely since those are DA/SA guns and not striker-fired models.

  25. Doug - April 26, 2017 @ 1:02 pm

    Why doesn’t it work in the P250 and why isn’t there a P250 model in the works?

  26. paul - May 4, 2017 @ 7:55 am

    The P320 is a striker-fired pistol and the P250 is a DAO hammer-fired pistol. The trigger travel is vastly different in each so the P320 trigger is not cross compatible with the P250.

  27. Christopher - December 21, 2017 @ 9:14 pm

    When will these be in stock again?

  28. paul - January 4, 2018 @ 10:59 am

    Back in stock and newly designed for the factory upgraded Sig Sauer P320 models.

  29. Gil Gilgen - May 10, 2018 @ 11:01 am

    Just go my P320 TACOPS-TB 9mm back from the voluntary upgrade.
    While waiting for its return bought the new Legion 45 P220 with the straight trigger. After
    shooting it at the range fell in love with it. I saw online that there was a straight trigger available from apex for the P220. I called Sig to make sure the APex straight trigger would
    work on my P230, with the new trigger assembly upgrade they had just completed. I was told
    no … however, upon my range visit yesterday, I noticed one of my co shooters had the new straight trigger on his P320 9mm, he told me he just bought the trigger online and dropped it in. Is there a difference between the new upgrade assembly and the stock assembly that would prevent installing straight trigger .

  30. paul - May 16, 2018 @ 9:03 am

    We do not offer a trigger for the P220. We only offer triggers for the P320 models.

  31. Mike Johnson - January 22, 2019 @ 7:47 am

    I like the trigger system. Can the trigger only be installed with the sig trigger bar or would I have to install your complete system. What is the benefit of the whole system. Thanks

  32. scott - January 28, 2019 @ 7:46 am

    Yes, we offer the triggers alone for independent use.

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