Precision drilling is essential when building or customizing an AK platform firearm, and the AK-Builder AK Trunnion Rivet Hole Drilling Fixture delivers the accuracy you need for professional results. This compact, color-coded fixture simplifies the task of locating and drilling rivet holes in both front and rear trunnions, ensuring proper alignment for secure riveting every time.
Key Features
- Color-coded bushings — Red inserts for 7.62mm applications and blue inserts for 5.45mm calibers provide quick visual identification and prevent cross-contamination during multi-caliber builds.
- Compact steel construction — Durable fixture measures just 3″ x 4″ x 0.25″ and weighs only 1.5 lbs, making it easy to store and handle on any workbench.
- Designed for AK trunnions — Specifically engineered to locate rivet holes accurately on standard AK-47/AKM style trunnions, reducing the risk of misalignment that can compromise structural integrity.
- Professional-grade tool — Ideal for both hobbyist builders and experienced gunsmiths working on semi-automatic AK variants.
Why Choose This Fixture?
Drilling rivet holes freehand often leads to off-center or oversized holes that weaken the trunnion-to-receiver connection. This fixture eliminates guesswork by providing precise guide holes, helping you achieve factory-level fit and function. Whether you’re installing a new trunnion during a full build or performing repairs, the tool streamlines the process and minimizes material waste.
Specifications
- Overall dimensions: 3 in (L) x 4 in (W) x 0.25 in (H)
- Weight: 1.5 lbs
- Caliber-specific guides: Red (7.62mm), Blue (5.45mm)
- Compatible with common AK trunnion riveting tasks
Common Applications
Use this fixture when riveting front or rear trunnions during AK receiver builds, trunnion replacement projects, or when correcting mis-drilled holes on existing assemblies. It pairs well with standard drill presses or hand drills for consistent results.
Invest in reliable tooling that supports accurate, repeatable builds and helps maintain the structural integrity of your AK platform.



