I know the difference in grip length between the G20sf and G20 doesn't seem like much on paper, but you can really feel the difference.
The 20 and 21 are made with the exact same frames, so if you can find a G21sf to hold, that is exactly how a G20sf would feel.
Glock 20SF Gen 3
Glock 27 NiB-X Gen 3
Glock 19 Gen 4
Spike's Tactical Enhanced CHF 16" Mid-Length M4
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