Rated 5/5 based on 14 customer reviews
Item Number: 320-XCSB
 Review Average:  
 Number of Reviews: 14
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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.

Compatible with X-Compact slide and 15rd Compact magazine.

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, reholstering
  • 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
Amazing improvment and hostler compatibility
I contacted Wilson Combats customer service first to make sure I was getting the correct grip module. This grip module fits the p320 compact RXP. First impression was a substantial improvement in grip. Extremely comfortable in the hand and exceptional ergonomics. Can't wait to take it out and put rounds downrange. This Fit my generic OWB concealment holster. Funny enough it fit and drew better than Sig Sauers grip module. It also fit perfectly in my T Rex arms side car holster. I also switched over my streamlight TLR 7a. Just need to switch out the Pic rail plate on the light to a different one and it fit perfectly. Couldn't be happier with the new grip module. All the reviews that just tell you to get one.... well here's another one. Just get one!
Perfect Addition to P320 xCompact
This is the perfect grip for the P320 xCompact. It feels great in the hand and looks even better. Makes it better to shoot and fits my hand well.
Great feel and size. Makes for a full grip with the subcompact slide.
Best Grip
I never thought I would find a handgun that fit my hand better than my Hi Powers. My 320 FCU matched with this grip is the best ever. I have medium sized hands and this grip is a perfect fit. Can't say enough about how much of an upgrade this grip is for my 320!
Game Changer
This changed the entire feel of the pistol. I was happy with the stock X-Compact Grip but it did feel slightly boxy. This now fits my hand better than any pistol I own. I already loved the sights, my trip to the range did not disappoint! Just feels right! Follow up shots exceeded expectations. Just buy it now!!!
A must up grade for your P320 Compact!
As a 44 1/2 year LE professional I have never seen one part make as much a change in a weapon! Moving the beaver tail up and the texture of the grip change the performance of a weapon this much! I have always leaned towards the Colt 1911 and I own numerous examples of this weapon! Now I find myself owning several sigs. A 938, a P320 X5 and a P320 compact. I just got back from the range shooting the Wilson grip module and as soon as I finish this review I will order another one for my P320 X5! Great product,
Wcp320 x
A++++ nice feel great grip I agree with all the reviews can't go wrong
320 Transformed
This is the grip module the P320 X-Compact deserved from the start. As others have pointed out, it truly transforms the the feel of the pistol. It feels much better in the hand due to the contours built into the grip versus the squarish feel of the original grip module. Of course, some of the best news is the price. I can't imagine a more cost effective upgrade!
This module really does make my beloved 320 feel like a different gun; in the best possible way. This module is slimmer, less boxy, more comfortable, more concealable, and easier to use (I can, actually, reach the magazine release without shifting my grip!). I loved my 320 before. I love it even more, now. I keep unloading the weapon so that I can just hold it and enjoy how it feels (Which is ridiculous!). The grip uses every bit of available length--the backstrap running down to meet the magazine floorplate. It has pretty much the same usable length as the SIG X-Carry module, while keeping the compact dimensions. It fits my hand PERFECTLY (your hands may vary, of course). I'm not a big fan of the aggressive "skateboard tape" texturing on the front and back. It feels good in the hand, but it catches on my clothing. I may try gently buffing it down a bit. ...which is a big advantage of the P320: I can switch out the grip for sixty bucks, and I dare to play around with the module without worrying about ruining the gun. I suspect, though, that you will love it just the way it is. By the way, if you are debating between this module and the Compact, Go with this one. The X-Carry runs just fine (and looks great) with a Compact (3.9") slide, but gives you the option of using the 3.6" subcompact slides.
Worth It
Right off this was a well worth it upgrade from the OEM regular compact grip size small that I put on the gun when I first built it. I was a bit worried that it would be too big for my hands after I had originally went with a size small. But with the indentions WC puts for your thumb and trigger finger to set in makes it feel great for me. I wear a size medium in a glove as bit of a comparison. It has really good traction on the front and back straps similar to skate board grip tap and the sides are not real what I would call slick but they are not as aggressive either . The nice part about the sides are they do not rub on my skin like the OEM one did. So over all after I got to shot the gun with this grip I do have to say it is an awesome upgrade to the p320 and I would recommend any one with a p320 to give it a try.
Best upgrade ever!
This is without a doubt the best upgrade I have ever made to a gun. Every single time I carry this gun I fall more and more in love with it. The Wilson Combat grip completely changed the feel and increased my confidence while shooting the gun at the range. Even the range master came over and looked at my gun noticing the grip module. All I can say is buy one! You will not be disappointed.
Fantastic Upgrade
This is a fantastic upgrade for the standard Sig module. Wilson took time to assess every little change to be made. You will feel the difference immediately. Great “how to” video to install properly. Well done.
Completely different gun
I carry/handle my P320 everyday. Both for work and concealed carry. I had the stock X-compact grip with the talon rubber grip. The day the wilson combat grip module arrived, I hadn't touched my P320, I was carrying a different firearm for work. Immediately after opening the package I could notice the difference. After swapping over the FCU and slide, my P320 felt like a completely different gun. The tolerance on the FCU is a little tighter in the wilson combat module. The shape and size of the grip is perfect. Especially around the beaver tail and the undercut. I can actually get my hand up, around, and higher on the gun for better recoil mitigation. The flush fit with the magazine while keeping the internal mag-well is a subtle improvement. The grip texture is also a lot better, even when compared to the talon grip. It isn't too abrasive, but I can definitely feel my hand sticking to it in places it should. The index points above the mag release on the grip are a huge deal as well. Normally my thumb rides against the slide stop, but now I can smoothly put my hand on the grip and run the gun comfortable. Combined with the over-sized slide stop, this is more prominent. From both concealed and open carry, the draw and acquisition of target feels more natural as well and I find myself being on target quicker. I firmly believe this is how the P320 is supposed to feel and shoot. If you're reading this review, stop and just go ahead and buy the grip. I am going to be recommending it to anyone I know with a P320.
Absolutely Perfect
I am not kidding when I say, this is the best upgrade decision I've ever made on any firearm I own - period. The stock grip from sig never felt quite right to me. It's a little boxy and always felt a bit "slippery." This WC grip solved my distain for the sig stock grip from literally every angle. It's VERY reminiscent of a 1911 grip. The rounded and tapered edges fit perfectly in your hand, while your pinky is pampered on the flared magwell. Now you can finally do away with that "half on - half off" pinky situation on the stock sig grip. The grit on the back and front of the grip is extremely aggressive. It bites a bit, but it hurts so good. I personally want that kind of tac on a carry gun. If you're on the fence, buy it. You and your x-compact will thank you.