The Springfield Armory XD-40
Extended Capacity Magazine Basepad project

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The goal here was to create new extended basepad for the XD that would increase the magazine capacity of the XD's magazine to allow it to compete in USPSA Limited divison. This was a first proof of concept model. I never did use it other that to get and idea of how many rounds it would let me load.

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So from the first proof of concept model I create this model. It will hold 22 rounds of 9mm or 15 rounds of 40S&W, 16 rounds in 40S&W is possible but you will never be able to load it in a slide forward XD. I have used this one and it functions but the factory springs are to short and the last round or two feed unreliably.

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Cosmetically the first prototype was a bit ugly. I drew up a few different models playing with blending it into the lines of the XD.

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From the feed back I got on the above options I created this prototype. Internally it is identical to the first functional prototype but is blend with the XD frame much better. Here it is in my XD-40 Service.

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Here it is in my XD-40 Tactical with my own custom magazine well

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The two versions next to each other for comparison.

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Close-up veiws of the version 2 in my XD-40 Service.
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