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tnw 45 acptnw suomi m31 kit
m31 parts
suomi m31 barrel dimensions
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TNW SUOMI M31 SEMIAUTO KIT BUILD INSTRUCTION BOOKLET WITH DRAWINGS AND ASSEMBLY DETAILS COVERS SEMI AUTO RECEIVER, SEMI AUTO BOLT, AND SEMI AUTO LOWER I just picked up a M31 receiver from TNW via a group buy we organised. As I was putting it together I discovered that the stock recoil spring is too long.This information manual is designed to assist you in learning how to use and The SUOMI M31 has a two position safety– Forward (toward the barrel) is the