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Since the topic of my other thread was about drilling the gas ports, I felt this topic deserved it's own thread to hopefully make it easier to find for other users should they encounter an issue like mine. Replacing the Saiga 12 barrel is an expensive process and I've found that very few people would be comfortable even attempting it regardless of their fee. Hopefully this will prove valuable to someone in the future. In the process of hammering out the lower dowel pin to remove my gas block to drill the gas ports, I dented my barrel. While the bottom dowel pin was still installed, I was trying to hammer it out with a punch when it was apparently hit with too much force causing the gas block to cant on the barrel which rode the dowel pin up the side of the barrel causing this dent (pictured below) The dent was approximately 1mm high and the same width. After calling several gunsmiths from around the country for quotes or advice, explaining to them that the dent was in a delicate area (if the barrel were to be bulged slightly during repair, replacing the gas block could prove problematic and create an all-new set of problems). After receiving mostly confusion as to what a Saiga 12 actually was, I decided to take matters in to my own hands. Stumbling around the Internet in search of advice, I found a website that rents gunsmithing tools including the Brownells 12 gauge Dent Raiser tool which costs nearly $500 shipped. This website (of which there is a link to in the following video) charged around $70 shipped to rent the tool for 7 days, which is quite a savings. Here is the video I made shortly following my correction of the dent in the barrel. To use this tool correctly it is to be used as an anvil. Once you have the spacer on the tool set to the end of your barrel with the anvil under the dent, open the hydraulic ledge/anvil until you feel a slight resistance on the dent and can no longer turn the tool within the barrel. I gave mine another 1/2 turn on the hydraulic control to ensure a tight pressure against the dent. Take a small hammer and rap on the dented area on the outside of the barrel being careful not to overdo it, as that could cause major headaches when you attempt to reinstall the gas block. Go slow, and check after every tapping session to see what progress you've made removing the dent. Once you think you have the dent removed, insert the tool again. Raise the hydraulic in the barrel to the point where the tool will just barely turn within the barrel. If you can make a full rotation with the tool inside the barrel with no noticeable resistance in any particular spot then congratulations, you've fixed your barrel. Otherwise, back to tap tap tapping. GO SLOW. Really want to thank you guys on Saiga 12 for participating in helping me drill my ports, hopefully this tidbit will help someone solve their dented barrel in the future. Accidents happen and this was going to be a costly fix, but with the cost of all the tools and rental involved, I went from a possible $3-400 fix (or more depending on installation charge) into about a $100 fix total. Thanks guys.
I haven't tested this out yet but it seems like it should work and it doesn't look really cheesy or backyard mechanic ish. Just went down to the auto parts store asked for a small diameter piece of vacuum line. since I only asked for about 5 inches of the stuff they let me have it for free. Only other thing needed is some super glue and about 5 mins. I cut off about 2.5 inches of the line, ran my pocket knife through one side of the vacuum line, put a small amount of superglue on the edge of the dust cover that needed to be covered. Then I slid the sliced piece of vac. line in place and pressed it firm against the cover for a couple mins. You can see where some of the glue is showing around the edge of the vac. line. If I had been a bit more careful you wouldn't see any and the fix would look super clean. I'll try to get out and test it soon and report back. -lol I've had my camera for 6 years and I just found the macro setting-