Feeling ‘Triggered’ Are We?

Custom Works P320 FCU and Studio Countless Options, Endless Possibilities

One of the most interesting features of the P320 MHS (Modular Handgun System) was… well… the modularity. Now modularity is an overused buzzword that basically means you can change stuff around fairly easily if you want to spend the time, effort, and money.

But it opened the door to an interesting possibility that I am pleased to see SIG now offering.

Made. To. Order.

SIG Custom works has launched a Fire Control Unit studio. Basically a ‘construct a plush stuffed animal’ for the P320 trigger mechanism that you can then add your favorite(s) in slide, optics, and frame too for a tailored pistol on standardized parts.

The FCU is the legal firearm, the serialized item for the handgun (or it could be rifle, firearm, SBR, AOW, SBS, or shotgun depending, I saw some prototypes that looked interesting) and you can pick frame, barrel, caliber, and optics suite from the booming buffet of options.

Let’s be honest. “Modular” doesn’t mean a whole lot practically in many respects. All the “modular” rifle options have quietly solidified into SKUs, factory options instead of end an user owned pile of parts that you magic into the ninjafied mission specific rifle and then reninjafy on the fly. However, the P320 has defied that stereotype with a couple key elements now offered. First, factory and aftermarket grips, slides, and sights are available and affordable at a variety of levels and features. Second, the pistol is incredibly easy to work this feature on. Pulling the FCU and putting it into a new frame was simple. Making owning a ‘gamer’ and/or ‘duty’ and/or ‘concealed carry’ frame all very easy and practical options.

If you don’t need the option, you don’t. But for those that benefitted from it, the ease of use compounded the benefit.

So now the option has come into its next logical phase, the made to order FCU where instead of buying stock and modding (which you can still absolutely do if you enjoy it) you can pick your preferred parts and order it to arrive instead.

SIG’s release below:

With its unprecedented modularity and unmatched capability, the P320 platform has become one of the most exciting pistols available to firearms enthusiasts today. The soul of the P320 and the driving force behind its modularity lies in the unique, patented design of its Fire Control Unit (FCU).

Now you can build your dream pistol from the ground up. The Custom Works FCU lets you create like never before. Countless options, endless possibilities.


Keith Finch
Keith is the former Editor-in-Chief of GAT Marketing Agency, Inc. He got told there was a mountain of other things that needed doing, so he does those now and writes here when he can. editor@gatdaily.com A USMC Infantry Veteran and Small Arms and Artillery Technician, Keith covers the evolving training and technology from across the shooting industry. Teaching since 2009, he covers local concealed carry courses, intermediate and advanced rifle courses, handgun, red dot handgun, bullpups, AKs, and home defense courses for civilians, military client requests, and law enforcement client requests.