Caleb J. Reisinger
My hands-on journey in the industry began after leaving active Army service in 2008, where I worked as a small arms repair specialist. For the last 14 years, I've guided thousands of customers through precision assembly and troubleshooting of Polymer80 frames, focusing on custom fits and regulatory-compliant builds. This was honed during my six-year tenure as the senior frame specialist at Atlantic Gunsmithing, where I personally assembled or inspected over 2,500 P80 kits. My technical approach is rooted in practical engineering, eliminating guesswork and focusing on repeatable results.
Areas of focus
- Polymer80 PF940 Frame Fitment and Finishing
- Jig Use and Hole Alignment Troubleshooting
- Lower Parts Kit Compatibility and Modification
- Frame Rail Installation and Staking Techniques
- 80% Frame Completion for Glock-Compatible Builds
- ATF Compliance Guidance for Home-Built Firearms