Precision Stamped Steel Ready To Bend & Build
AK-47 Polish Underfolder – For building a Polish AK-47 in 7.62x39mm with AN underfolding stock. Do not use with Yugo M70/M92, Hungarian AMMS, or Romanian underfolder rear trunnion. 1⁄8" alignment pin holes are pre-drilled.
Precision-cut, ready-to-bend steel flats save time and frustration when building a custom AK. No more trying to salvage a beat-up receiver from a “donor” gun. These flats are stamped from the correct 1mm thick sheet steel, with top rails pre-bent, stepped, and trimmed on CNC equipment. Hammer and trigger holes are slightly undersized, ready for precise final reaming after bending; use 7mm and 5mm chucking reamers. All flats come with lower bolt guide rails that include magazine stabilizers on both rails and the hammer spacing bump that centers the hammer in the correct position. Rails require drilling for center support holes after spot welding. Refer to the listing below and choose the correct flat for your project.
See the AK Builder Receiver Flat Bending Die Set, plus other jigs and tools that aid in custom AK work here.
Big Book Catalog, Issue:69, Page:154
SPECS: Annealed 4130 steel, in-the-white. 1mm (.040”) thick. Includes instructions.