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AR15.COM
5/7/2008 5:29:48 PM EDT
Can I put a G21 slide and bbl on there and shoot .45? cuz that would be sweet
5/8/2008 11:13:00 AM EDT
[#1]
Yep a G21 slide, barrel, and mags are all you need.  You can also put a G20 slide and barrel on a G21SF too although you'll have to get the new version G20 mags with the cutout for the ambi mag release if your G21SF has one.  

The large frame Glock std frames are identical even down to the same ejector.  The only thing that makes them different is the slide, barrel, and mags use use with them.  

BTW, Glock developed the G20 as it's first large frame Glock and then made the G21 as a derivation of it.
5/8/2008 12:33:17 PM EDT
[#2]

Quoted:
Yep a G21 slide, barrel, and mags are all you need.  You can also put a G20 slide and barrel on a G21SF too although you'll have to get the new version G20 mags with the cutout for the ambi mag release if your G21SF has one.  

The large frame Glock std frames are identical even down to the same ejector.  The only thing that makes them different is the slide, barrel, and mags use use with them.  

BTW, Glock developed the G20 as it's first large frame Glock and then made the G21 as a derivation of it.


well shit, i know what im doing