The Polymer80 PF320 PTEX Handgun Grip Module is not compatible with the M17 because the M17 uses a manual safety, and these modules are not cut for a manual safety.
The Polymer80 PF320 PTEX Handgun Grip Modules are not intended for use with P320 .45 ACP slides or models with a manual safety. Unfortunately, a .45 ACP module is not currently offered by Polymer80.
The Polymer80 PF320 PTEX Handgun Grip Modules will work with Full Size 9mm Sig P320s without a safety.
The Polymer80 PF320 PTEX Handgun Grip Modules is just the frame with no internal components.
The Polymer80 PF320 PTEX Handgun Grip Module is not compatible with the P320 M18 as it does not have a manual safety cutout.
The Polymer80 PF320 PTEX Handgun Grip Module is designed for slides with a 4.7" or 5" barrel. The X-Compact comes with a 3.6" barrel so the frame will proceed past the length of your slide. You could potentially cut it down be flush with your slide. Or you can also use a module that was designed for the 3.6" barrel your X-Compact uses.
The Polymer80 PF320 PTEX Handgun Grip Module is compatible with the P320 Nitron Compact, however, the frame will extend past the length of the slide. The frame is designed to accommodate slides with 4.7" or 5" barrels. The Nitron Compact has a 3.9" barrel.
The Polymer80 PF320 PTEX Handgun Grip Module will be compatible with a P320 X-Compact slide, however, the frame will be longer than the slide leaving an underbite look.
Yes. The Polymer80 PF320 PTEX Handgun Grip Module will fit and function with an X5 legion slide and FCU.
The Polymer80 PF320 PTEX Handgun Grip Module will be compatible with the Sig Custom Works FCU, but will not be compatible with the OEM M18 FCU due to the lack of a safety cut on this module.