WE Glock 17/18 is the same thickness as TM Glock 17/18, and they are both thicker than real Glock 17/18 and have a hard time fitting in real steel (real plastic?) Glock hard holsters for 17/18.
But they MAY fit in Glock hard holsters for real Glock 21, which is thicker than real Glock 17/18, and also slightly thicker than TM/WE Glock 17/18
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