P320 Manual Safety Conversion

AB Prototype

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Manual Safety Conversion for a SIG P320 or 80% P320 Frame

This is a SERVICE to convert an existing SIG P320 to manual safety (most Gen 1, post-upgrade, AXG, X-Ten, Wilson Combat, ZEV, etc). This includes SIG Sauer OEM manual safety parts and grip cut, as required. We can cut factory frames or 80% frames. 

Perfect for your EDC P320 or competition!

We precision cut the manual safety pocket in ANY P320 FCU in 9mm, 40S&W, 357SIG, 10mm or 45ACP to exact SIG Sauer specifications. Each frame is tested for fit and function.

The SIG manual safety parts are exchanged for your existing non-manual safety FCU parts. Grip is cut as required. No additional holes are cut or drilled!

Includes: CNC machine your FCU for the P320 Manual Safety Lever. Exchange non-safety parts with manual safety parts. Cut polymer SIG P320 grip (SIG, Wilson Combat and other grips ok, Polymer80 requires additional customer modifications, AXG aluminum grip +$10, inserts will not be cut). Function test. If necessary, please add a P320 frame or 80% frame and FCU parts kit to your order. Lead time can be up to 2 weeks, but is often less.

We will reply to your order confirmation with shipping instructions. We are a licensed firearms manufacturer and can receive and return firearms directly to customers' residence address only. All completed FCUs must have a serial number and must be accompanied by a copy of valid state-issued driver's license, CCW or ID card (no PO Boxes for return address). Conversion may not work with all aftermarket trigger bars such as the standard forward-set Apex trigger bar (manual safety version will work).

Shipping charges cover return shipping only, signature is required upon return. When shipping please do not include cases, manuals, slides, optics, etc. unless specifically necessary for other services.

FCU Parts, Barrel, Slide, Grip, Magazines, etc. are obviously NOT INCLUDED.

PLEASE NOTE: AB Prototype modifications to your frame are not authorized by SIG Sauer or JSD Supply. Any modifications to these frames will most likely void any existing manufacturer warranty. AB Prototype does not provide any additional warranty, neither expressed nor implied. We only guarantee fit and function of the manual safety lever on completed frames.

51 Reviews Hide Reviews Show Reviews

  • 5
    P320 Manual Safety Conversion

    Posted by William Hulik on Aug 5th 2022

    The folks at AB did a great job. The machining was precise and neat. Function was perfect and it looked like it came that way from the factory. The turn around was also very quick. All in all - a 5 start job Thank you for the outstanding service

  • 5
    Sig Sauer P320 Spectre Comp

    Posted by RG on Jul 27th 2022

    I'm not a person who leaves reviews. But the service from AB Prototype was impeccable. Initially, I wasn't sure they would do my Sig Spectre Comp. I got an almost instant email reply that it would be fine. So I sent the gun off and received automated updates. The gun was back in my hands in less than a week. The work was perfect. I would not hesitate to use AB Prototype. They are awesome.

  • 5
    Sig P320 X-Carry Manual Safety Installed

    Posted by Ron Atkins on Jul 15th 2022

    I sent my P320 X-Carry in to have a manual safety installed. This is the 3rd time I have had work done on some of my pistols. When I received this pistol back, the manual safety they installed looked just like a factory installed one. My pistol was returned in excellent condition and everything works perfectly. If you ever have to have any gunsmith ING work done, you can trust them to take great care of you. Great customer service and high quality workmanship. Thank you for the great job AB Prototype.

  • 5
    Great Workmanship !!!

    Posted by Eric on Jun 20th 2022

    So I was never on the fence about having AB Prototype do the P320 Manual Safety Conversion on my Firearm. The Reviews were good, it was just a matter of getting around to it. Well I am very happy. The function, the machining, the overall work done on my P320 RXP X-Compact was absolutely perfect... Seamless transaction. And turn around was actually very quick and surprised me. I want to say a week or week in-a-half. Anyhow there was no "slop", no new "dings", "nicks", "burs", or machine "chips" in my Lower. I can tell it was "cleaned" as well. These Folks do GREAT work... Thanks AB Prototype. VERY Satisfied...

  • 5
    P320 manual safety conversiom

    Posted by Kenneth Townsend on Jun 7th 2022

    Looks and works just like factory. Would definitely do it again.

  • 5
    P320 Manual Safety Conversion

    Posted by Chuck on Jan 10th 2022

    1. Fit and function like the factory version. 2. Turn-around was one (1) day in the shop. Recommend.

  • 5
    P320 safety conversation

    Posted by Rob on Jan 9th 2022

    Great work! converted my Sig p320 FCU with the titanium gold nitrate finish with now a safety. It’s crazy that Sig does not offer one with a safety but thankfully AB took care of that problem. Excellent work looks like it came this way from the manufacturer and was all assembled to the frame and ready to go.

  • 5
    Manual safety installation

    Posted by Timothy Ray Feist on Dec 17th 2021

    Great workmanship.

  • 5
    P320 Manual Safety Conversion

    Posted by Tony S. on Nov 16th 2021

    These are my third and fourth conversions. Superb! Thank you, Alex!