Retrofitting Ruger P series magazines?

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Euclidean

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Hello all.

I've recently inherited a Ruger P85. It's not my first choice in a defensive handgun, but seeing as how I will never sell it, I am going to invest in some accessories for it.

The pistol has three of the original 15 round capacity magazines. I've owned a P89 in the past before trading it for another XD, and I knew that the 9mm P85, P89, P95 etc. all used the same magazines.

Anyway I have some factory 15 rounders for a P89 from before and while they fit the P85, they don't catch without forcefully loading them. They feed just fine however in snap cap testing.

I haven't taken my caliper to it, but they seem to be the same dimsensions. The only difference I can tell is there's a little catch hole on the front of the magazine that is in a slightly different position on both. I'm wondering if I can't file it out a little bigger and make it work better.

The original magazines are thus suitable for serious use, but the newer ones are not. Has anyone else tackled this issue?
 
Euclidean said:
The pistol has three of the original 15 round capacity magazines. I've owned a P89 in the past before trading it for another XD, and I knew that the 9mm P85, P89, P95 etc. all used the same magazines.

Anyway I have some factory 15 rounders for a P89 from before and while they fit the P85, they don't catch without forcefully loading them. They feed just fine however in snap cap testing.

P89 mags only worked in P85s and P85 MkIIs as long as the P89 was serial number 304-69999 or below. Sounds like the P89 mags you have came from a gun 304-70000 or above.

--
Mike
 
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