Over a year ago, SIG Sauer released the P320 Fire Control Unit (FCU) and custom shop. The new FCU and custom shop gave consumers the ability to build a P320 from the ground up. The FCU and custom shop release was a great success for SIG. Attempting to find a P320 FCU is an Herculean task in 2021. Now, SIG Sauer is releasing a FCU for the P365 along with a custom shop to boot. Fans of the P365 and P365XL can design the micro compact of their dreams from the ground up.

Below, is the press release from SIG Sauer announcing the P365 FCU and custom shop.

Press Release

NEWINGTON, N.H., (August 24, 2021) – SIG SAUER, Inc. is pleased to announce the SIG SAUER Custom Works P365 Fire Control Unit is now shipping to select SIG Master and Elite Dealers, and the SIG Custom Works P365 Studio is now live at The standalone P365 Fire Control Unit (FCU) brings an entirely new level of customization and personalization to the world’s most popular micro-compact, everyday carry pistol with the ability to build a completely custom P365 using the exclusive SIG Custom Works P365 Studio at

“The P365 pistol was groundbreaking because it brought an unprecedented,10+1, 12+1 or 15+1 capacity to a micro-compact everyday carry pistol. The revolutionary design and innovation of the P365 took the market by storm to become the world’s most popular, everyday carry pistol,” began Tom Taylor, Chief Marketing Officer and Executive Vice President, SIG SAUER, Inc. “Now with the introduction of the P365 Fire Control Unit we have brought an entirely new level of customization and personalization to the P365 platform – America’s most popular micro-compact pistol, is now also the most customizable.”

The SIG SAUER P65 Custom Works Fire Control Unit (FCU) is a patented, serialized fire control unit (only available at select retail stores) that features a titanium nitride coating, a titanium nitride flat trigger, a custom FCU Serial Number (FC####) and is compatible with all 9mm P365 accessories.

“In conjunction with the availability of the P365 FCU in retail stores, we have also launched the SIG Custom Works P365 Studio online at From grip modules to optics, and everything else you could possibly need to configure your P365 in thousands of different ways, the studio has it all right at your fingertips,” continued Taylor. “This level, and ease, of customization was first introduced through the popular P320 Custom Works Studio, and based on the overwhelming popularity, and quite honestly the demand, to incorporate your personality to your pistol, we are bringing the capabilities of the SIG Custom Works Studio to the P365.”

The SIG Custom Works Studio gives the consumer a unique online experience to build a P320 or P365 pistol from the ground up by choosing a grip module, slide, barrel, guide rod and springs, optics, accessories or have complete CAL-X Kits (P320 only) with the virtual configurator. All parts available within the Custom Works Studio are available for purchase direct from

What are your thoughts on SIG’s new P365 FCU? Let us know in the comments below.

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