I recently bought a new Saiga 12 and did the conversion thanks to Carolina Shooter's Supply an helpful videos. I searched the forum and found out 2 of my 3 gas ports were obstructed with the gas block. I followed the link on removing the gas block, redrilled the ports to 3/32, put in a plug from MD Arms and have her running like a sewing machine. she will even cycly Wal Mart low brass Winchester. Thanks a lot to everyone and Merry Christimas!