Rated 5/5 based on 33 customer reviews
Item Number: 320-CSB
 Review Average:  
 Number of Reviews: 33
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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 itís 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 ďWilsonĒ.  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 Combatís 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
Takes your P320 to a whole new level
Just as other reviewers have said, this grip is shaped in just the right ways at just the right locations - it's hard to put into words, but you'll never believe how well it will fit your hand. Installation was a little tight, but I have no intention of ever changing this out. I loved my (stock) P320 before, but it's really something else now: it's an absolute pleasure to handle (and let others handle), and it's noticeably shrunk the size of my groups. If you're on the fence about getting one of these, trust me, you will not regret it.
Better than the CZ 75!
I never thought I would find a better grip than the CZ 75, but I did. It's the Wilson Combat Sig 320 grip module. I can even manipulate the mag release without shifting my grip. Very well thought-out.
new favorite handgun due to wilson grip module
I picked up a Sig P320 a few months ago. It came with the medium grip module and I was sure that would be too big for me. I often read about guys talking (bragging) about their big hands. Well I dont have big hands and my finger are short and stubby, just like my legs. but my hands a plenty strong and efficient. I ordered the Sig small module and it was much better but still not exactly what I wanted. Read a bunch of reviews on the Wilson Combat grip module and it sounded good. I also called and spoke with customer service re the grip model. They proved me with good information and said the dimensions were closest to that of a Sig small grip module but with more of a 1911 feel. I have long been a 1911 guy so that sounded good and I bought one. Got it thursday and took it out for a couple hundred rounds today. Wow, what a difference it makes. Fits great. The dimensions are not significantly different but rather different just enough in all the right places. The real test is not what it feels like, although that is important, but in the results of your shooting. We are fortunate enough to live in the middle of nowhere and have a great shooting range set up. We shoot at least weekly an usually a couple times a week. We do several drills and document speed with a shot timer and accuracy for our drills. These docs go back quite a while. My shooting with the Wilson Combat module today was significantly better than before. I think that is a great way to document your skills and verify constant improvement and or consistency as they dont lie and it is not based on just what you feel. The small cut out at the top of the grip really helps with one handed grip. Even though most of our training is with both hands it is critical to all practice shooting with just your strong hand and your support hand. That was one of the notable improvements today. I would highly reccomend this grip module. I may feel the need to get a couple more for my other Sigs.
Best P320 X grip
I swapped out the factory grip module for the Wilson Combat Carry grip module and it is outstanding. Better recoil control, better grip, and excellent texture. Allows the shooter to get back on target quickly. It fits my X-VTAC perfectly and adds to it's performance.
Feels great, stock magazines don't fit.
Grip texture feels great on the front and back, really fits my larger hands, and easy to install. But the 15rd magazines that came with my P320 Carry do not fit. Seems a little ridiculous that I'll have to buy new magazines or dremel the base plates to fit. Seems like a blatantly amateurish design decision, if you want to retain your 15rd magazines maybe buy a hand grip from another manufacturer.
May have magazine issues
Great product definitely made my 320 feel better in my hand but my magazine base plate wonít let the magazine fully lock into the mag well. Trimmed the tabs on the baseplate and it locked up just fine. Definitely will recommend to anyone with a 320. Thanks to Wilson Combat!!!
Works with the P250 compact
Always wanted to change my grip module but couldn't decide on what would fit me best and l wasn't disappointed with this grip module. The Wilson Combat grip modules has breathed new life into my p250.
Great Improvement
I liked my Sig 320 and how I love it. This module is a great improvement. I also have the M17 and I am purchasing the module for that. Great Product.
Best P320 Upgrade!!
This frame module is makes my favorite pistol even better by removing that awful "hump" in the middle of the factory grip. I have XL catcher's mitts for hands and this grip feels fantastic. 100% drop in, everything fit perfectly and is high quality. The swap takes about 3 minutes and is super easy. If you think about it-this frame is a BARGAIN- the average cost of a frame stipple in my area is $200, this frame comes with an awesome star burst stipple pattern included. One note: on my 2018 P320 Carry, I had the older style mag base plates and I chose to simply remove the plastic ears on the baseplates to get the mags to insert. Simple job and looks good.
Fantastic upgrade!!!
***** I just received my WCP320 grip and it feels AMAZING, especially when paired with the flush bottom-half of Align Tactical's OFFSET Extended Magazine Release for a super high grip!!! Those two pieces together really knock it out of the park and make this pistol phenomenal !!! HIGHLY RECOMMEND THIS COMBO! 5 Stars!
Too small
To be honest I love this grip, if it wasn't made for tiny people. Significantly smaller than the medium size grips by sig. There is no possible way for me to get a comfortable grip on this. Wish the made more than one size.
How do you guys manage to get it right EVERY time?
With nowhere near me to handle Wilson Combat products before I buy them I just order them and assume they will be better than what I can get locally. This grip module, like the parts and grips for my Beretta, is even better than I hoped for. I already had upgraded to the sig X-frame for my .40 and that was really good. I assumed this could only be a little better but ordered it anyway and it is MILES better. The pistol points better, falls right into the proper places on my palm and fingers, and allows me a good centimeter more reach to the trigger. Bravo ladies and gentlemen. I will keep ordering your stuff sight unseen.
Awesome upgrade
Just got this for my x-carry. I hated the original 320 grip due to the pop can feel it had. When the xseries grip released, those felt like they were molded for my hand or so i thought. When wilson released these modules i was extremely skeptical because it looked as though they went back to the sig style pop can shape. But i can tell you looks are deceiving. This grip is an absolute must for 320 guys. I have Lg/XL sized hands and though this grip is smaller than the x series medium, it fits perfectly for me. My only gripe would be the sunburst texturing is a little slick with wet hands. But the front and back straps are perfect. Iíll be getting another black carry module and the fde fullsize for my x-five
P320 FS
Absolutely AWESOME 👏 This WC Carry Module completely makes all the difference on my Full Size P320 (4.7Ē Barrel) Greatly enchanting my grip purchase, super ergonomics. Totally worth every penny. Additionally, I installed the WC Guide Rod, & WC #15 Recoil Spring 💥 Beautifully crafted, outstanding design. Makes my P320 FS, feel much, much better. 5⭐️Ďs for WC😁
The grip the 320 should come with
This grip took my 320 from a range only gun to a carry gun. I like the 320 and love the trigger. But it just never felt good in my hand carry wise. This grip however feels like it was made for my hands. Well worth the small price. Highly recommend it.
The prefect fit
Wilson quality! 5 different people tried the fit of the Wilson module in their hand, even friend who had previously tried my X Carry and the grip module was to large for her small hands, loved the ergonomic fit of the Wilson Combat module. Makes your pistol more controllable and seems softer shooting, which comes with more control and less muzzle flip.
Perfect fit
Awesome fit an finish love the extra grip
Great Upgrade at a Great Price
I really love the feel of this grip module and it looks great too! My one gripe is that it will not accept the stock 15 rd magazines that came with the P320 carry model even with the new base plates so now buying the 17 rd mags. Other than that, it's a winner.
P320 Grip Module
Today I recieved the Wilson Combat grip module to replace my stock module on my Sig P320 X-Carry. Along with the tungsten grip weights. This product is exceptional. Fits my hand extremely well. I could not be happier with the fit and finish of this product. Not to mention that it was extremely easy to install both the weights and the fire control until. Another phenominaI product from Wilson Combat. I cannot wait to take it to the range.
P-320 carry grip review
Great addition to the P-320 carry 9mm. It takes about 2 minutes to take out the fire control unit and put into the new grip module. The texture is rough enough to retain grip even with sweaty hands but not so much so for it to be too abrasive. Another high quality product from Wilson Combat.
P320 Carry WC grip module
I own both a full size and a carry model of Sig P330. I was looking to replace the medium size grip on the Carry model with the small size. After reading about the WC module I decided to try it. When I received it and installed the fcu into the frame I was impressed with the way it my hand. I shot it at the range yesterday. I was very impressed with how it fit my hand and created a natural point of aim. I noticed initially I was shooting higher than normal. It did not take long to change my muscle memory to adjust to the new point of aim. I was a little concerned about the aggressive grip texture. During the time I was actually shooting I was ok with the texture. I can see if I was wearing gloves it would really help lock the grip into your hand. Overall I would recommend the WC grip module to anyone considering purchasing one. I like it well enough that I have ordered another module for my full size Sig P320.
Great Improvement
Shot my P320 CA last week after installing the new WC grip module. Great improvement over stock grip module. All of the features that WC included in the design of this grip are fantastic. The only suggestion that I would make for improvement is to extend the support thumb index. I have large hands so my thumb reaches beyond the index groves so I had to add a little grip tape in front of it. No big deal, but thatís my only improvement recommendation. Canít wait until they produce one for my P320 Subcompact.
Good but very small
I like everything about it except the size. It is significantly smaller than the Sig medium. So much so that it doesn't fit my hand. I should have returned it before installing the tungsten weights. Maybe I can sell it to someone.
The guys that are reading this will know what I'm talking about regarding the need for longer magazines and the Sig "magazine ears". that busted my smalls when I received this gorgeous Wilson Grip Mod. This is also responded to within Wilson's FAQ's (to a degree). I have an early P320 Carry/ who knows what model size and needed to get 14, 14+ plus magazines to make this work. Here's a big Also! I discovered that the Beretta PX4 Storm 40 S&W Magazine Base Pads are the perfect marriage for the correct size Sig Mags! No Ears! I don't know if Wilson Combat offers these but they're available on the Beretta USA web site at about 8 bucks ea. Or you can cut the "ears" off Sig Mags if you are so inclined. Either way buy this Great Grip Module!
A must have for the P320
I have had the P320 Sub-Compact and Carry for many years. As much as I love both of them the one thing that needed improvement were the grips. I thinned by Carry frame significantly, undercut the trigger guard to get it to fit my hands better and I have been very happy with it. However once I saw your grip module I knew I had to give it a shot and boy was it worth it! Very happy with the fit, finish and feel of this module and you definitely hit a home run with this one! Now we need one for the SC and once similar to this one for the P365 XL. Looking forward to your future releases for the P320.
From good to exceptional
The WC grip module that I installed on my newly purchased M18 is top notch. Totally worth the money, easy to install and the WC ergonomics and build quality far surpasses the stock P320 modules. The WC module makes an already great pistol exceptional. Iím so glad WC is working with Sig Sauer to customize their pistols.
This grip module changed my X carry from a lovable lump into a concealable EDC that fits my hand. A buddy of mine tried it at the range and decided to order one. Thanks,
X Carry Dream module
When I saw WC released their module, I bought the module before buying the gun. Finally today, after finally finding an X Carry, first thing I did was clean then install the WC grip module. World of difference! Love it, and it looks better too!
Best Grip Module for Sig P320
I own a P320 RX Full, RX Compact, and Sub-Compact and use the Small Sig grips. They all have an annoying bump on the front strap and the palm swell is too big. I tried the X-Compact and XCarry grips but they are too fat and don't have the cut-out for the trigger finger making trigger reach more difficult. This grip is shaped perfectly and feels like you are holding a single stack pistol. I'll be purchasing more of these as soon as they are back in stock and can't wait until they come out with the Compact version.
Love the grip, but fit slightly odd
Just got this grip module and I love it - with one minor exception: It went on fine and the grip feels really good in the hand. The only issue I have is with the fit along the slide: as it gets past the take-down lever, it starts to warp down away from the slide and kind-of wedges out - providing a larger gap at the muzzle of the gun. I would have hoped it would fit evenly along the full length of the slide. I have considered trying to order another one to see if might be better; I know it is molded plastic, but would love to get better fit without doubling my money into this thing.
Excellent upgrade
WC knocked it outta the park with this grip module. I thought Sig did a great job on the ergonomics of the P320, but this takes it to the next degree. Get one you wonít regret it. Hope WC does a compact that takes 15 rounders.
The best grip option available
Iíll keep it short and sweet because the other reviews nailed it on the head... Im absolutely in love with the grip module Iíll be building another P320 just so I can buy another. perfect texture where you need it amazing undercuts, definitely give you a much higher grip smooth finish no mold seems like my m17 and incredible flared magwell again just amazing
Phenomenal upgrade
When Wilson Combat released their own grip module, I noticed from their press release and images that they appeared to have fixed every small issue I had with the X-Series and standard P320 grips. Mine arrived yesterday, and I can confirm: 1. The WC grip module has a groove cut for easier magazine release actuation. It's as good if not better than any gunsmith attempt I've seen, and it's on both sides. Without needing an extended magazine button, people with normal size fingers can drop the mag without shifting the grip. 2. The WC grip module has a beveled mag well and is shockingly deep and wide. Compared to the removable, metal X5 mag funnel, it's not as wide, but I am actually no slower on the timer doing reloads with the WC grip module. For context, it's somehow bigger than a Magpul aftermarket mag well for Glock pistols, yet it doesn't seem to add any length to the grip and the width looks just right. 3. The sandpaper-like texture on the front and back straps is about as aggressive as a Glock RTF2. Maybe more. It is not uncomfortable after firing, unlike the CZ P10 pyramid-style texturing that rubs my hand raw. This is probably the best I've found. 4. The very annoying added grip width at the back-top of the X-Series (X-5, X-Full, X-Carry, etc) grip module has been eliminated. This is a small but very helpful improvement. No more rubbing my firing hand thumb raw! Plus, the beavertail is much closer to that of the original P320 frame, but a little bit longer out back and with a little bit more relief up top for a shorter box axis. This is 10x more comfortable than the X-Series grip module that has a beavertail that is uncomfortably long (pokes into my ribs) when carried in the appendix position. Again, a perfect compromise. 5. The sunburst designs on the left and right side are beautifully done. The texturing is very much like the Archon Type B in that it provides a bit of extra traction but won't tear up shirts or snag on anything. There is no flashing or other imperfections in the molding. I think it's gorgeous. I showed my friend, a Wilson Combat enthusiast who didn't know this new grip module existed, and at first glance he first thought my X-Carry was a build from the WC custom shop or some entirely new pistol. 6. It's quite strange and exciting to see the Wilson Combat name on my carry pistol. Wilson Combat has provided a way for P320 owners to upgrade their pistol grip functionality and aesthetics beyond that of any striker fired pistol that I've encountered. Think of this grip module as having Glock RTF2 front and back strap texturing, Archon Type B side grip texturing, a race-gun inspired beveled mag well, a custom gunsmithed magazine release groove on both sides, and the looks that have helped make Wilson Combat famous, all for less than $100. It's greater than the sum of its parts, too, and that's saying something. I highly recommend it in black. -Neal