Rated 5/5 based on 9 customer reviews
Item Number: 320-CMB
 Review Average:  
 Number of Reviews: 9
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Detailed Description


The impressive modular capability of the SIG-SAUER P320 is why it has become a favorite with practical shooters and it’s thoroughly tested design will be the official US Military sidearm for many years to come. 

Wilson Combat has now reengineered the P320 grip frame to optimize its practical shooting potential.  This all new molded polymer grip module will enhance your grip and improve recoil control.  Our significant improvements in shape, texture and overall ergonomics will give your P320 the superb feel of an expertly hand sculpted custom gun with a simple grip change.

Our fresh look at the P320 grip module incorporates the suggestions of tactical trainers, champion shooters and firearms experts into the final product that has a look that is unmistakably “Wilson”.  We believe it is the most practical, comfortable and stylish P320 grip available and the ideal choice for practical shooting or defensive handgun use.

These are non-serialized, newly manufactured grip modules and are not a serial numbered firearm.

The Wilson Combat SIG-SAUER P320 Polymer Grip Module features:

  • Caliber Availability - 9mm, .40 S&W, .357 SIG
  • Upgraded, high-cut 1911-style beavertail grip tang for smooth draws
  • Undercut front-strap and reshaped, radiused trigger guard for the highest grip possible
  • Enlarged, integrated magwell opening for fast reloads-compatible with the latest generation SIG-SAUER X-series factory basepads
  • Improved grip traction and increased grip pattern coverage with Wilson Combat’s exclusive Starburst grip pattern on the sides and aggressive texturing on the front and backstrap
  • Frame reference serrations for support hand thumb or index finger positioning
  • Internal Slots for Rod-style Tungsten Weights** (Click Here for Tungsten Weight Kit)
  • Angled "Holster Cuts" on light rail to aid in snag-free, re-holstering
  • Factory SIG-SAUER magazine release, spring, and lock included
  • Compatible with all standard holsters
  • Compatible with all current production, X-Series basepads

**Not compatible with X-Five Tungsten Weight


DISCLAIMER: "SIG" is a federally registered trademark of SIG SAUER Inc. and is one of many trademarks owned by SIG SAUER Inc. 

Neither Wilson Combat nor this website is affiliated in any manner with or otherwise endorsed by SIG SAUER Inc.  The use of "SIG" or "SIG SAUER" on this page is merely to advertise the sale of SIG pistols, parts, or components.  For genuine SIG SAUER Inc. products and parts, visit


P320 Grip Removal/Replacement:

  • Unload and clear your pistol.
  • Remove the slide assembly and set aside.
  • Remove the takedown lever out of the factory grip from right to left and set aside. You may need to twist/tap the takedown lever out with a non-marring tool as it is retained by a spring in the chassis.
  • Lift the chassis straight up and forward out of the stock frame.
  • Install supplied magazine catch, spring, and lock into the WCP320 Grip Module
  • Reverse the process to install the chassis into the grip frame and re-install the takedown lever.
  • You may need to tap the takedown lever in place with a non-marring tool. 
  • Reinstall the slide assembly and move the takedown lever into the locked position.
  • Ensure that your pistol functions properly and your magazine drops cleanly after installation of the new grip frame.




 Product ReviewsClick here to review this item
Worth the hype
I have read a lot of good things about the WC grip module and was fine w my M18 and M17 SIG factory grips; However I wanted black and went with the WC w safety and wow, even better than expected. Very Worth the $ and superior to the factory grip Highly recomend.
Wilson Combat Sig 320 grip module
Several months ago, I bought one of these grip modules in tan for my Sig M-18 pistol in 9mm. It felt great in my hand and made the pistol feel more secure. Also, the back of trigger guard above the mag release on the stock grip seemed to rub on my middle finger. Somehow, Wilson must have adjusted the shape of this area as their grip module dies not irritate my finger like the stock Sig grip did. I liked it so much that I ordered another in black to have a contrast between the grip and slide. I also have a Sig 320 in .45 caliber and would love to have a Wilson grip module for it but, sadly, you don't make one for the .45 cal 320.
Excellent grip overall, but....
I'm giving it four stars, because overall it's an excellent grip module, and makes the firearm look bad ass, but the sizing is just not quite there for me. It's the perfect width at the front and front to back, but because it thins out at the backstrap, I just can't get enough meat on it with my support hand. I have long fingers and skinny hands, so that's probably my problem. It's definitely worth the money to at least try with your hand size.
Amazing product from a great company
The moment you hold this grip you notice the difference, I highly recommended this grip because I compare the original M18 grip an a X-Carry grip and the Wilson Combat grip felt much better and is a little bit thinner. The SIG Sauer grip are a little bit wider, which it is my main problem with the SIG Sauer grips having small/medium hands. I really like the all around aggressive grips but the Wilson Combat grip has an aggressive grip in the front and in the back side (which i really like) so you don't need to use another garment tuck in to your pants to avoid the friction between the grip and your skin. It is a perfect balance between aggressive and comfortable design that also come with an "internal beveled magazine well" design which makes reloading faster and easier.
I liked the factory grip on my M17 Bravo. This grip turned the ergonomics up to 11, and under no circumstances will I be going back. Definitely get the tungsten weights and extended slide stop as well.
The perfect grip for me
I bought this grip module 3 months ago and could not be happier. Everything fit perfect and the grip itself is perfect for me, completely stable in my hand with a great amount of bite. After a 1000 target rounds my hand was not sore at all. I highly recommend Wilson grip modules for the Sig P320
Holy shit this grip module is awesome
So I bought the full size with the manual safety and that one doesn't seem to be able to be reviewed at the moment. But god damn this is the best grip I've ever owned. I thought I liked the Sig version. I was wrong, this thing is next level. Highly, highly recommend.
Fantastic Grip Module w/Manual Safety Cutout
Was looking for a custom grip for P320 with option for manual safety. This fit the bill perfectly and at a unbelievable price. Feels great and compliments the pro cut slide very well.
Fantastic Offering!
I really like Wilson’s grip frame offering. I especially appreciate that it is priced moderately. The slight flair at the bottom for the mag well is a nice base for your hand and the mag well works, actually, quite well. The grip frame is a bit narrower than the X series frames whick is welcome too. Both from a form and function standpoint I think WC’s new offering is a welcome addition to the P320 product line.