This was waiting on the doorstep when I got home today. I had it pre-ordered from SIG awhile ago.
I assumed it would be just the X Carry module with a bit cut off the bottom. It is more than that. The grip is shorter but so is the dust cover. In addition, the profile is a little different. It is more of a round butt where the X Carry is flat or almost flared. The mag well opening is quite a bit smaller and the beavertail is a little different shape.
Of course I haven't fired a round through it yet but have to say I'm impressed. The module feels great in the hand and the pistol points naturally for me.
This will likely become one of the more popular options for the 320.
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