Manual Safety Cut

AB Prototype

Was: $60.00
Now: $55.00
(19 reviews) Write a Review
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Manual Safety Cut for a SIG P320 (No longer offered for 80% P320 Frames)

This is a CNC Machining service to add a manual safety pocket to add a manual safety lever to your SIG Sauer serialized P320 frame. At this time we can only cut factory serialized frames due to changes in ATF regulations, Aug 2022. (We cannot accept 80% frames, whether serialized or not). 

Perfect for your custom M17, M18 or manual safety conversion!

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

No parts are included with this service. Safety lever shown for reference only. No additional holes are cut or drilled!

Includes:  SERVICE ONLY to CNC cut your frame for the P320 Manual Safety Lever. You are not purchasing any products with this service. Please add a P320 frame or 80% frame to your order, if necessary. Lead time can be up to 2 weeks, but is often less.

You can also send us your existing P320 frame for modification. We will reply to your order confirmation with shipping instructions. All completed frames must have a serial number.

Shipping charges cover return shipping only.

FCU Parts, Barrel, Slide, Safety Lever, 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.

19 Reviews Hide Reviews Show Reviews

  • 5
    Safety Grip Cut

    Posted by Joseph on Apr 10th 2024

    Great service. Excellent turn around time.

  • 5
    Very Fast Turnaround Time

    Posted by Brian Wiens on Jan 11th 2024

    Sent in my FCU along with a manual safety parts kit. From shipping out to receiving it back was a week. Everything works perfectly. Thanks AB Prototype!

  • 5
    Quick and effect

    Posted by Edison Hill on Nov 3rd 2023

    They got the product done and shipped out in a quick manner. Recommend over doing it yourself. The CNC wizards cut true

  • 5
    320 Manual Safety Cut

    Posted by Mike on Mar 27th 2023

    I purchased a P320 Manual Safety pack from Sig. I didn't realize that the FCU had to be altered. I sent my stripped FCU to A&B and got it back in a few weeks. The work was perfect. My P320 now functions just like the M17/18. I have a fair amount of experience working on firearms and have taken several factory armorer courses. I will say that I found putting an FCU back together a bit challenging. If you don't have the right tools and a bit of training / experience, you might consider sending them your entire pistol. Very satisfied on their modification of my FCU and will use them for other projects.

  • 5
    Manual safety cut P320

    Posted by Bruce on Jan 3rd 2023

    Sent in bare P320 FCU, had it back in less then 2 weeks and it works flawless! Great service highly recommended

  • 5
    Manual Safety Cut

    Posted by Paul H on Oct 26th 2022

    Very professional work done in a timely manner. Godd communications throughout the process. Very happy with the results. I am very gad to have found your company and services

  • 5
    Safety cut

    Posted by Daniel on Jul 1st 2022

    Great communication and speedy service!!

  • 5
    P320 FCU Manual Safety Slot Cut

    Posted by Sean Tallarico on Jun 20th 2022

    Hi quality service and fast turnaround. I was able to install the manual safety myself and everything works perfectly.

  • 5
    FCU P320

    Posted by carlos marquez on Mar 16th 2022

    Excellent service Thank you