Richard Simmons
Well-known member
Traded into a Ruger 22/45. The Serial number puts it as a 2003 production. My question is what mags will work in it? In their store Ruger has MK II 22/45 and MK IV 22/45 mags but nothing as just 22/45?
I've owned MK II and MK III 22/45's in the past. Unlike their steel framed counterparts, the mags were interchangeable because they both had the grip style mag release. The MK IV din't change that feature either. i.e. All the Ruger 22/45 mags are interchangeable.
As an aside, you can also convert Ruger MK III/IV ( standard frame) magazines to fit your 22/45 by swapping the base plate.
hth
All 22/45 mags fit all 22/45s.
How are you defining MK II and III? My pistol is marked 22/45 only. Are you saying all 22/45 mags are interchangeable?
All 22/45 mags fit all 22/45s.
Yep, that's a MKII 22/45 Stainless with bull barrel, exactly like my blued version. These are fine shooting .22 semi-autos.
Thank you. So I can use MK II and MK III magazines?
That's not completely accurate . . . 22/45 magazines are backwards compatible but not forward compatible. I have a MKII 22/45, MKIII 22/45, and a MKIV 22/45. Without any modifications or base plate changes the MKIV magazines will work in the MKII and MKIII, but the MKII or MKIII magazines will not work in the MKIV.
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Here's the pistol. Based on your information it must be a MK II as I see no loaded chamber indicator. Looks identical to the blued model at the bottom in your photo Faulkner.
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It's a 22/45 model 00190, catalog number KP4