PFS9 Complete Pistol Threaded - Full-Size 9mm Kit

About this product

What is the Trigger Logic PFS9 Complete Pistol Threaded - Full-Size 9mm Kit?

The Trigger Logic PFS9 Kit is a full-build 9mm pistol kit centered on an 80% polymer frame with a complete, fluted, and threaded 5.08-inch barrel assembly, tritium night sights, and all internal components ready for final machining. Unlike traditional firearms, this kit ships discreetly as components, with no FFL required for immediate delivery. This approach puts final assembly—and legal compliance—in the hands of the builder, offering a path to a truly custom, suppressor-ready sidearm.

What is the PFS9 kit used for?

This kit is used to build a full-size, high-capacity 9mm pistol that is suppressor-ready out of the box for recreational shooting, home defense, or as a training platform. The primary work involves precisely milling the polymer frame's internal fire control pocket using a standard AR-15 end mill—a process requiring about 30-45 minutes with tools like the 5/16″ High Speed End Mill for Easy Jig®. The finished result is a purpose-built pistol with 17+1 capacity and night sights, legal for ownership in most jurisdictions where self-manufacture is permitted.

How does the PFS9 kit compare to a Polymer80 PF940V2?

The Trigger Logic PFS9 kit is better for builders who want a ready-to-go upper assembly and can source their own standard jig, while the Polymer80 PF940V2 is a frame-only option. The core difference is that our PFS9 kit ships as a complete upper assembly with fitted barrel and sights, so you're not chasing separate components, but it relies on you having access to a compatible jig like the AR-15 Easy Jig® for a proper build. The PF940V2 is just the raw frame requiring a separate slide assembly, making our kit more inclusive for a single order, though less modular.

What does it weigh and what are the dimensions?

The complete upper slide assembly weighs approximately 19.5 oz, and the unfinished polymer frame blank is roughly 6.8 oz, for a projected complete pistol weight of around 26.3 oz unloaded. The overall length will be approximately 9.1 inches when the slide is forward, with the 5.08-inch fluted barrel extending past the slide by about 0.6 inches. The grip frame is 5.7 inches tall along the backstrap, accommodating a full-size magazine basepad.

Who is this NOT for?

This kit is NOT for first-time builders who do not own a compatible milling jig or lack the mechanical aptitude to execute precise operations on polymer frames to within 0.005-inch tolerances. You must understand that an error in this process is not covered under warranty—this is why we wrote the guide on Jig Alignment Pin Specifications. If you need a plug-and-play firearm delivered to your local dealer, this is the wrong product; the process requires tools, time, and technical accountability.

What's in the box?

You receive the complete upper slide assembly with fluted and threaded 9mm barrel (1/2x28 thread pitch) pre-installed, one polymer 80% frame blank, a completely assembled lower parts kit with Glock-style trigger components, one 17-round steel magazine, and a set of tritium night sights. You do NOT receive a jig for finishing the frame. Builders must also supply a proper end mill, drill press or router, and appropriate workholding fixtures to complete the critical machining step.

Is the Trigger Logic PFS9 kit worth it?

At its current street price, the kit's value lies in the integrated, suppressor-ready upper with night sights, which avoids the typical $80-150 premium to source those parts separately. For a builder who already owns a compatible jig and tools, the total build cost for a premium-grade pistol is very competitive. However, if you must purchase a jig and tools specifically for this project—adding roughly $250-400 to your budget—the total investment may not justify the savings versus a factory-built pistol.