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Thoughts on CMMG Banshee MK17 9mm pistol that uses Sig P320 mags

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April 25, 2021, 11:07 AM
Cabowabo12
Thoughts on CMMG Banshee MK17 9mm pistol that uses Sig P320 mags
Hi all,

I have 2 CMMG Banshee's 9mm that use Sig mags. Couldn't decide if I wanted the 5" or 8" barrel so bought both.(it's a sickness) Anyway I'm surprisingly having feeding and extraction issues with hollow points, but also sparingly with FMJ.
Anyone have this model Banshee and having these problems? The MK17 Sig versions are relatively new and I fear they don't have the legendary reliability of the Glock mag versions Banshee 9mm.

Thanks
April 25, 2021, 11:11 PM
Lefty Sig
I recently bought a 5" MK17 but haven't shot it yet. I'll give a try soon and report back...
April 28, 2021, 07:43 AM
Cabowabo12
Thanks Lefty Sig.
The other day at the range my 5" MK17 shot perfect. Sig Elite Performance HP and Hornady Critical Defense HP. So looks like problems are isolated to my 8" version.