Magwell Extension for M1811 Grip Module Features

The Brouwer M1811 Magwell Extension is designed to enhance the already generous magwell of the M1811 Grip Module for the Sig P320.

The Magwell extends the margin of error when performing magazine changes by increasing the magwell opening diameter and providing a smooth transition for feeding.

Special consideration was made to ensure that the addition of the Magwell would maintain the same grip index and repeatability of the M1811.

In order to achieve this the external profile was designed to minimize impact and interference with the users grip.

The rear of the Magwell was designed to fit below the profile of the grip to reduce impact to the users palm swell. The front and sides of the Magwell were designed to offer a secondary index point that cradles the users hand at the bottom of the front strap.

Compatibility

The Magwell is designed to work with factory 17 round magazines, as well as high capacity magazines without modification.

Material and Finish:

The Magwell Extension is made from 7075-T6 aluminum and is currently offered in three different coatings: Hard Black Anodized, or Anodized with color matched Cerakote in either Coyote or Black.

Customer Reviews

Based on 155 reviews
95%
(148)
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J
John Kelleher
Excellent

Nothing but good things to say about Brouwer products!

M
Michael Smith
Pricey but obviously I still purchased.

Great addition to my grip. Wanted the burnt bronze but settled for coyote tan.

R
Ronald Dillon
Perfect

All the hype with this frame is true. Fits my hand perfectly and the quality is top tier. Extremely pleased with the purchase.

T
Travis
Perfect function

I was going to put this Magwell on two of the three pistols but after feeling how good it feeds from extreme angles I decided to put it on all three. Absolutely worth the money to add these on, and the slide on method of attachment with a bushing built into the grip module to accept the screw that secures it was genius

T
Travis
Just stellar.

First of all the grip angle and the changes to the available higher space to get a higher grip on the gun are not just talk. They do produce results. Can recognize a stark difference between Factory form and this one and I have two polymer grip modules from them as well. If you're used to a 1911 grip angle it will be hard to land off Target on the draw As It sped my draw the first shot up considerably. But the biggest thing is the service, I ordered a grip module cut for a safety and then purchased a fire control unit custom Works type and realize that there was a pin that would fall out without that plastic in the way and called to check on possibly exchanging which wasn't possible but, they went above and beyond to take care of me on the second grip module so much so that I bought an aluminum and built a third complete gun I had no plans on building. These guys exemplify what customer service and quality products can do together. Up until now I have not even been a 320 fan as the grip does not really fit my hand well in Factory format and the high Center Line of bore over the hand really didn't impress me all that much shootability-wise , but these parts really do make a difference to the point where they have just about become my favorite polymer frame weapon. Do business with confidence. I cannot wait to see you the exciting new things these guys come out with over the next few years. It's obvious they know what they're doing and have some experience behind a weapon