OK, I made a mistake, I'll admit it... I didn't read the fine print on the ad and ended up buying one of the limited capacity (i.e. 10-round) Mec-Gar magazines instead of the non-restricted capacity (should be 17 rounds) ones. I had been waiting months for Midway to have it in stock and stumbled across a listing on eBay where someone was selling them for a decent price. From the title on the ad, it looked like the right one and I didn't see anything about only 10 rounds in the body of the ad and in fact, I didn't even *know* that they made that magazine in only 10 rounds, so I can see how I could have made the mistake. The company's current ad does have the fact that it is a 10-round mag in small print way down in the body of the ad and it would still be easy to miss if you didn't know to look for it. Not having a copy of the original ad, I can't prove that it didn't say that it was a 10-round mag, so I'll just give them the benefit of the doubt and figure I must have just missed it. Anyway, the cost and time to ship the item back to them and the new right size one (if they even have it) just doesn't seem worth it to me.
So, I was curious what it would take to convert this mag from 10 rounds to 17 rounds. It *looks* like there is just a dimple on each side of the mag that prevents the magazine follower from going lower than the 10-round position. The spring goes all the way to the base pad, so I think it is the same length as the original spring.
To *me*, it looks like I could just disassemble the mag and put the magazine body in my drill press and drill out the dimples. Many magazines have holes in the sides or bases of them to allow you to see how many rounds are loaded, so this doesn't seem like too radical of an idea for a modification.
What I bought What I *should* have bought
Anyone ever tried this?