October 16, 2012, 06:33 PM
Hey guys my suomi m31 just arrived at the FFL a few hours ago. The first thing I did was take it apart to clean and lube it up. I found a few videos on youtube plus a manual from TN on disassembly and I noticed that the guns in the videos and manual have two springs. One is a small diameter spring and one is a larger diameter. Well mine only has the small diameter spring in it. Am I missing a spring here? My gun came from centerfire systems. I am hoping that they just built them differently when converting them to semi auto. thanks for any info.