I had a lot of magazines that would not feed properly, jam etc. After seeing a thread on Glen Whittenberger’s "mag anvil" and discovering that Glen had unfortunately passed away, I embarked on a project to make a tool to fix my mags. After a lot of trial and error I believe I have come up with an improved version of Glen's tool, at least it worked for me. I used several magazines that were gauged and adjusted by PK to get the dimensions correct. As can be seen in the pictures I added an alignment bolt through the magazine catch hole to secure the tool to the correct height and made the tool thick enough that it fits snugly inside the magazine body to correct any potential dents in the sides of the magazine. I made the tool long enough to work on both 20 & 30 round mags and about 21/2 inches longer than a 30 round mag so it could be held in a vise. Once inserted with the alignment bolt in place some gentle tapping with a nylon faced gunsmith hammer brought the feed lips back where they belong. I hate to call it a "mag anvil" since that congers up visions of using a 4 pound hammer on the magazines, gentle persuasion works better.
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Edited by Tiz, 26 January 2020 - 09:28 AM.