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. 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 frame (FCU) in 9mm, 40S&W, 357SIG 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 SIG non-manual safety FCU parts. Grip is cut as required. No additional holes are cut or drilled!

Includes: CNC cut your frame 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 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 frames 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.

46 Reviews Hide Reviews Show Reviews

  • 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!

  • 5
    P320 Manual Safety Conversion

    Posted by George French on Oct 30th 2021

    The gun was received by AB on Monday night. The following Monday morning it was delivered to my door. Fantastic service! The fit, finish and function is excellent. Quality work, great service and very reasonable price. It doesn't get any better than this.

  • 5
    P320 manual safety conversion.

    Posted by JRW on Oct 27th 2021

    Another five-star review for a five-star company. Precision work, indistinguishable from factory finish. Only 8 days turnaround from the time I shipped until the time it was back at my door. Great work, thank you so much.

  • 5
    For those that desire a manual safety add-on...

    Posted by T. S. on Oct 19th 2021

    For those that desire a manual safety add-on, this is the place to have it done! I cannot tell the difference between this conversion and one done from the factory. Thank you Alex! Tony

  • 5
    P320 Manual Safety Conversion

    Posted by Pedro Ruiz-Garcia on Oct 16th 2021

    Excellent work. Looks like it came with the safety from the factory. That is how good their work is. Works perfectly and I am very happy. Highly recommended.

  • 5
    P3230 Manual Safety Conversion

    Posted by Mike on Oct 14th 2021

    Outstanding product/service. Used standard Sig parts and looks like a factory product. Turnaround time (less than a week) and quality is impressive. Highly recommended. I’m a manual safety kind of guy especially when it comes to concealed EDC. This mod turns a great pistol into the best.