Geisler Defence Model 1917 (Glock® 19x Compatible) 80% Frame and Jig Kit | Polymer80
About this product
Geisler Defence Model 1917 80% Frame and Jig Kit
GLOCK® 19X-compatible hybrid frame with improved ergonomics and a transparent jig for precision fabrication.

Experience the ultimate in DIY firearm building with the Geisler Defence Model 1917 80% Frame and Jig Kit. This innovative kit features a unique see-through jig that allows for unparalleled accuracy during drilling and milling, making it easier than ever to complete your 80% frame. Designed for compatibility with GLOCK® 19X, this hybrid frame combines the full-size grip of a G17 with the compact slide length of a G19, ensuring optimal comfort and control. It utilizes all factory Gen 1 to Gen 3 components and is finished with a durable QPQ black coating for long-lasting performance.
Key Features and Technical Specifications
- Hybrid design: Full-size G17 frame/grip with G19 slide compatibility
- Uses full-size magazines only (not compatible with compact magazines)
- QPQ hardened black coating for enhanced durability
- Integrated serialization plate for customization
- Steel locking block with rails grooving to prevent dirt accumulation
- Patented stainless steel back rails for reliability
- Includes DIN 7 tempered pins for secure assembly
What’s Included in the Kit
- 80% G19X compatible full-size frame
- Transparent completion jig for precise fabrication
- 3mm and 4mm drill bits
- Blank serialization plate
- Locking block rail and rear rail module
- Pins for assembly
As experts in the industry, Polymer80 provides this high-quality kit for enthusiasts looking to build their own firearms. Note that this is not a firearm and state laws vary; check shipping restrictions before ordering. Requires basic tools and additional parts kits for full assembly.
Specs at a glance
What's in the box
- Geisler Defence Model 1917 (Glock® 19x Compatible) 80% Frame and Jig Kit | Polymer80