I recently purchased an arsenal SLR 95 and first trip to the range she shot high and left at 50 yards (which is my favorite range to shoot my 7.62x39 AK's). Tried my Tapco sight tool and couldn't budge it for windage or elevation. Soaked the front sight in WD40, and was then able to move it for windage with the tool but only after soaking a whole week. I then exerted too much pressure and bent the Tapco el-cheapo tool like a rubber band when trying to screw down the post for elevation. Next I tried a home made sight tool that my father made years ago when I got into SKS rifles, and it did the same. I was really afraid I was gonna break the post off, glad it was the Tapco wrench instead. I'm gonna soak it in Liquid wrench next, and order another tool but I'm really afraid I'll break the sight. The sight nor the gun is rusted or corroded.