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FAB Defense Magazine Well Grip for M16/M4/AR15
$25.50 $23.50 Save $2.00
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Most Helpful Positive Review mako mag well grip
works really good, BUT please be aware that if you have a S&W MP15 or 15-22, there will be a lot of shaving to do. I already have one on my M&P15 BUT i strongly discourage this product for such AR. i hope MAKO will have special manufacturing for Smith and Wesson.
Most Helpful Negative Review Tried on 3 different lowers and No Go!
Tried on my DB15 lower pistol build and doesn't sit on the lower section. Tried on my AM15 and doesn't line up either. Tried on another AM15 and looks like it might fit but still doesn't line up with the serial #. Waste of time. Will be returning. Not to mention Optics Planet only sent me 1 instead ...
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Great grip

by Squatlow, Verified Owner from TN, United States Written on August 1, 2026
Works as intended. Had to modify slightly due to snugness on mags. Works great with steel mags
Would recommend: Yes
Was it helpful to you? Yes | No

Mag well grip

by JOHN FLORES, from TX, United States Written on March 14, 2026
If you own a AR15 you should get a mag well grip the stability of holding the AR is 100 percent better
Would recommend: Yes
Was it helpful to you? Yes | No

Great feeling grip once installed

by Jesse, from AK, United States Written on February 18, 2026
Had to dermel it out to make it fit my lower, but after a few test fits it works perfectly. I have a few of the rhino mag well grips and they just fit and feed any magazine, but the feeling on this one is much better. I also had to dermel Gen 3 mags to get them to fit. But most of my magazines are lancer and they all fit no problem. With a little work it’s an amazing mag well grip and I wouldn’t hesitate to buy another.
Pros:
  • Fell and finger groves
Cons:
  • Altercation needed for certain lowers and magazines
Would recommend: Yes
Was it helpful to you? Yes | No

Magazine well

by J York, Verified Owner from MD, United States Written on October 30, 2025
Just received my Magazine Well-from OpticsPlanet and this thing is awesome plan on buying more for the rest of my AR's transitioning from the forward grip to the Maxwell perfect for what I like
Best Used for:
  • M4's and AR 15s
Would recommend: Yes
Was it helpful to you? Yes | No

Interesting...

by Dolemite, Verified Owner from AL, United States Written on September 19, 2025
This is a handy little device for individuals with large hands, especially when it comes to using pistol-sized ARs. I'd absolutely buy one again.
Would recommend: Yes
Was it helpful to you? Yes | No

It sucks and is cheap DO NOT BUY!!!

by No, Verified Owner from AZ, United States Written on July 17, 2025
There isn’t much of a review to give, looked cool, but did not bolt right on and is crocked even when you try to align it. Cheap hardware, cheap plastic. I’d like a full refund for wasting a few hours trying to make it work. Didn’t fit the 15:22 so tried to dremal as best could be even being very careful. The screws and nuts are cheap and no doubt will rust. It doesn’t line up where your fingers grip either. Looked cool but what a bummer.
Pros:
  • Looked cool on the website
Cons:
  • None
Would recommend: No
Was it helpful to you? Yes | No

Fab Defense seems FABulous.

by Mr. Wick, Verified Owner from VA, United States Written on May 24, 2025
Not the first items purchased from FAB Defense, and if need arises, won't be the least. Received mag well grip, opened package, assembled on rifle...fit perfectly. Tightly. No issues. Walk to mailbox to assembly completion was less than four minutes. Durability will be the final test.
Pros:
  • Everything
Cons:
  • nothing
Best Used for:
  • Designed use
Would recommend: Yes
Was it helpful to you? Yes | No

sent back, didnt fit but still good

by Mario Venero, Verified Owner from FL, United States Written on May 5, 2025
but only if you have a normal ar i had to back didnt fit my springfield saint victor still good
Would recommend: Yes
Was it helpful to you? Yes | No

Firm comfortable grip off hand guard

by Lucifuge752, Verified Owner from NC, United States Written on April 11, 2025
This is a must on at least one of your pistol-length AR's. It helps with stability and accuracy without getting in the way or catching on anything. It doesn't throw off balance and keeps your hand off of the hand guard.
Pros:
  • accuracy
  • Comfortable
  • Stability
Cons:
  • None
Best Used for:
  • Pistol length
Would recommend: Yes
Was it helpful to you? Yes | No

Fab defense grip

by BulletRider, Verified Owner from KY, United States Written on March 5, 2025
Gives more of a grip handle on the mag well. Keeps your hand off the magazine itself.
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.