P320 Engraving

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Engraving for a SIG P320 FCU

This is a CNC Machining service to engrave your personal information and serial number on your existing or purchased P320 FCU. 

We precision CNC machine your information with a 1/32" ball endmill to a depth exceeding the current ATF required .003" depth (and 1/16" minimum height). Serial number will show up in the window of the P320 grip module and manufacture information will be engraved on opposite side of FCU (not visible after assembly).

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

Includes:  SERVICE ONLY to CNC engrave your frame on two sides. You are not purchasing any products with this service. Lead time can be up to 2 weeks, but is often less. (JSD MUP-1 is optional, use checkbox).


FRONT SIDE: Serial Number (limited to 9 characters for the P320).

BACKSIDE: Manufacturer name (or your full name), CITY, STATE, 

You can also send us your existing 80% P320 FCU for engraving (MUST BE IN 80%, UNMODIFIED CONDITION). Contact us to arrange shipping (We are a licensed Firearms Dealer). We will only receive completed frames that already have a serial number.

Shipping charges will be charged at checkout for return shipping. The customer is responsible for charges associated with shipping the frame to AB Prototype.

FCU Parts, Barrel, Slide, Safety Lever, etc. are obviously NOT INCLUDED.

PLEASE NOTE: AB Prototype cannot guarantee compliance with state or Federal requirements. The customer is responsible for compliance with all state and Federal requirements. Any modifications to any frame will most likely void any existing manufacturer warranty. AB Prototype does not provide any additional warranty, neither expressed nor implied.

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  • 5
    P320 Engraving

    Posted by Darby Reid on Apr 6th 2020

    Awesome! Great job, followed by fast shipping! They make it too easy!