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AR15.COM
8/8/2010 7:30:38 PM EDT
I was wondering if anyone knows if a G21 slide will fit/work on a G20 short frame?  Thanks.
8/8/2010 7:35:19 PM EDT
[#1]
OOPs! had to re-read, missed the short frame (it's short frame, not slim frame) part. Don't know.
8/8/2010 9:43:46 PM EDT
[#2]
It sure will, no problem.
8/9/2010 1:53:06 AM EDT
[#3]
The frames on the G20 and G21 are identical, including all internal parts.  Identical meaning the exact same part numbers (yep, the ejector is the same too).  I believe that the G20SF and G21SF also share identical frames.  So, to switch calibers, all one needs to do is install a complete slide assy and correct mags and you're good to go.
8/9/2010 1:03:15 PM EDT
[#4]
Quoted:
The frames on the G20 and G21 are identical, including all internal parts.  Identical meaning the exact same part numbers (yep, the ejector is the same too).  I believe that the G20SF and G21SF also share identical frames.  So, to switch calibers, all one needs to do is install a complete slide assy and correct mags and you're good to go.


But he's talking about a standard G-21 slide and a SF G-20 frame.
8/9/2010 1:12:44 PM EDT
[#5]
Quoted:
Quoted:
The frames on the G20 and G21 are identical, including all internal parts.  Identical meaning the exact same part numbers (yep, the ejector is the same too).  I believe that the G20SF and G21SF also share identical frames.  So, to switch calibers, all one needs to do is install a complete slide assy and correct mags and you're good to go.


But he's talking about a standard G-21 slide and a SF G-20 frame.


It will work,you'd need newer g21 mags.If the sf frame has the ambi release.