M1811 Grip Module
Compatibility: Sig Sauer P320 9mm / 357 sig / 40
Requires:
17+ round magazines with current gen “square base pads”
current gen slide stop / release lever
Pairs well with
M1811 Grip Module
The Ultimate P320 Upgrade
The Brouwer M1811 Grip Module corrects the main ergonomic issues with the P320 platform – high bore axis, rounded slippery grip, short beavertail. The modern 2011 pistol is the standard for shooting performance, control, and ergonomics.
With the design of the SIG P320 series, we were able to bring some of that performance and control to polymer pistols.
Brouwer Grip Module Summary Of Improvements
Improved Handling:
The Brouwer P320 Grip Module greatly improves point of aim repeatability by utilizing ergonomics nearly identical to the 2011. The front strap angle has been changed to 107.5 degrees, with a back strap angle of 67.5 degrees to cause the pistol to seat into the hand when gripped. This geometry aids the shooter by placing the bore axis in a natural position.
The beaver tail has been moved up to reduce the height over bore while still maintaining the full functionality of the SIG P320 fire control group. The beaver tail has been profiled to draw the hand into the gun while providing a large surface to aid in reducing the effort to mitigate recoil. The rear profile of the beaver tail has been shaped to reduce catching the web of the user’s hand when gripping the gun promoting quick grip acquisition.
A large trigger guard was kept to ensure use with gloves in cold weather and reprofiled to remove unnecessary features. The profile of the trigger guard was moved up as high as possible to improve grip index relative to the beavertail while maintaining clearance for the P320 trigger. The tolerancing for the mag release button has been reduced to combat dust ingress.
Factory Compatibility
The grip module is designed to use all factory equipment that comes with a SIG P320: Fire control unit, magazine catch (reversible), slide stop, take down pin. The module accepts factory SIG P320 magazines (9mm) 17rd, and 21rd. The module is compatible with both Safety Selector equipped P320 and without. In order to work with Selector-equipped models, a small cut must be made. An interior outline has been molded into the part to assist with making the cut. We recommend a small rotary tool, such as a Dremel with a 1/8” burr bit. If this modification is not something you would like to perform, we offer it as an additional service which you can select on the store page before adding to cart.
Holster Compatibility
The M1811 grip module has been provided to the following manufacturers. They have tested the M1811 with their products and provided their feedback and assessment of compatibility.
Safariland:
Fully compatible.
Haley Strategic:
Incog X fully compatible.
AlienGEAR:
Rapid Force, Photon both light bearing and non are fully compatible. The cloak series will vary depending on the configuration.
RDR Gear:
All IWB are fully compatible.
T.REX-Arms:
Fully compatible
Carey Concealment:
Fully compatible
Tier1 Concealed:
Fully compatible
Grip Texture
Simulated side scales similar to the 1911 are present to stiffen the grip and fill the natural void in the palm of the hand without increasing the front and back strap radii. The front and back strap have been checkered with 25 lines per inch to improve grip without damaging clothing.
Improved Magwell Design
The grip modules magwell has been profiled to ensure a loaded magazine can be inserted at up to 45 degrees out of rotation, and 20 degrees out of axial alignment with the magwell.
Proprietary Polymer Blend
The M1811 grip module is molded with a proprietary blend of polymer. A significant increase in fiber and a premium resin composite provide increased rigidity.
Magwell Extension
The grip module is capable of accepting an additional flared magwell extension should the user desire.
Accessory Rail
A MIL-STD-1913 Picatinny rail is maintained under the slide in front of the trigger guard. Note, installation of a light, or under barrel attachment adjusted for a P320 may require a universal mount adapter as the trigger guard has been improved.
Note: please use the “U” adapter plate for surefire products.
Accessory Compatibility
- The M1811 grip module is designed to fit flush with a 3.9” barrel slide. It is also fully compatible with full length slides, and shorter.
- The module is compatible with 17 and 21 round magazines. They must have the newer square peg base pads which feature beveled sides. The older round peg base pads will not work.
Colors:
M1811 is available in Black and Coyote.
Textures:
Also available with deep laser engraving with cerakote options: Black, Coyote, O.D. Green, Sniper Grey. (+$120)
Absolutely love this grip module... It rekindled my love for the p320 again. My p320 hadn't been getting much use over the past year, and had mostly been sitting in the safe. Was almost about to sell it, when I thought I'd give this grip module a chance. So glad I did and So glad I didn't sell it.
This is now one of my absolute favorite pistols again. Only thing I think I like better now, is my PDP.
Will be getting a safariland holster for it and setting up a range/duty belt and will give my p320 the love it's been missing.
Perfect grip angle. Perfect thickness. Makes the p320 x full size grip module feel like a brick.... And the magwell adds perfect balance, and provides just that much more to grip on to. Do not skip out on the magwell. Texture on the standard isn't too aggressive, but also isn't too smooth.. added a piece of fabric grip tape on mine, and it's good to go.
Great grip module. Fits my hand perfectly and allows me a natural shooting angle.
Like the way it feels in the hands. Will definitely purchase again
I love how it feels in the hand. It is a much more natural point for me.
This 2011ish frame is perfect except for two things that Beavertail is pretty pointless. This gun doesn’t have a hammer so I don’t see the point so I chopped it off and the bottom of the grip where your palm meets at is two pointy and prints too much so I chopped that off to be more like a Glock reference my pictures. I used a NORSSO barrel and slide hopefully the guys at Brower see this and make a frame like this and send me one for free for helping them out. Thank you very much and you’re welcome…. I can’t figure out how to put my picture on here so if there’s not one, sorry
