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AR15.COM
1/31/2026 4:57:36 PM EDT
Hello.  Anyone out there with an M9A3 stuffed in an M12 Holster?  Asking because of the Threaded bbl.  Read online that the M12 holsters have plastic plugs to snug up M9 fit, was wondering if true, is the plug removeable?  Does A3 fit after that mod?  Picked up a couple surplus M12's cheap, haven't gotten them yet, looking for info, Thanks.
2/1/2026 11:00:27 AM EDT
[#1]
It will fit, but not optimum.  Better fit is with the UM84 that has the larger plastic channel in back rather than then single rubber bumper the m12 has.  The other version fits the SigP220 well also.
Use it too much and the rail under the slide will eventually rip the nylon lining.
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