Geisler Defence Model 1917 Glock 19X Compatible 80 Frame And Jig Kit

About this product

The Geisler Defence Model 1917 is an 80% pistol frame built to accept Glock 19X-pattern fire-control and slide components once the buyer finishes the remaining machine work. An 80% frame ships in an unfinished state, without the trigger pocket, sear pin holes, and locking block area fully cut, which under federal law means it is not itself a regulated firearm until that machining is completed. This listing includes the frame plus the jig kit needed to guide that final milling and drilling, so you're not sourcing the jig as a separate part.

What is included in the kit?

You get the unfinished frame and the matching jig used to index and guide the remaining cuts. It does not include the Glock 19X-pattern internals, barrel, or slide — those are separate purchases you'll need to source before the project is a shootable pistol. Contact us for current stock and pricing, since availability on 80% frame kits shifts with supply from the manufacturer and demand tends to run ahead of production.

What fits it?

The frame is machined to accept Glock 19X-pattern trigger components, slide rails, and magazine catch, so parts kits and slides built for that pattern will drop into a correctly finished frame. It is not a finished, ready-to-shoot pistol frame out of the box; the buyer completes the final machining before any internals are installed. Compatibility runs both directions, meaning most standard Glock 19X-pattern aftermarket parts kits should fit once the frame is properly finished.

How does this compare to a factory OEM stripped frame?

We also carry factory OEM Glock 19 Gen 3 stripped frames, which ship complete and finished, with the trigger mechanism housing and pins already installed, and go through your FFL like any other firearm. This Geisler Defence kit is the opposite approach: unfinished, sold to the buyer for at-home completion, and legally treated differently at the point of sale because it isn't yet a regulated frame. Which one makes sense for you comes down to whether you want a project or a part that's ready to build on today.

Who is this not for?

Skip it if you don't have access to a drill press or router jig setup and the patience to do careful, precise machine work, since a rushed or misaligned cut can ruin the frame permanently. It's also not for anyone who wants a firearm today rather than a home-completion project, or anyone in a state that restricts or bans unfinished frames outright. If precision machine work isn't something you do regularly, budget for a friend or local gunsmith who does, since correcting a bad cut afterward is often harder than doing it right the first time.

Does it work in California?

California treats unfinished frames and receivers as "firearm precursor parts." State law requires precursor parts to be sold through a licensed vendor with the same background-check and record process used for a complete firearm, and any frame you complete must be serialized through the DOJ before it's assembled into a functioning firearm. Read our California gun laws page and confirm current requirements before ordering — this is not a simple mail-order item for California residents, and the rules here have changed more than once in recent years, so what was true a year ago may not be true today.