Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Strike Industries Polymer80 PF940C / PF940v2 Frames Magwell
$24.25 $17.99 Save 26%
View Product
Compare (0)
Most Helpful Positive Review Awesomeness
Exactly what I was looking for... Fitment was great covered up that ugly hole turn into a beautiful magwell.. Strike industries hit the nail on the head with pure perfection as usual.. A+++++++ in my book
Most Helpful Negative Review Broke First Use
All was well at first. The magwell actually fit perfect without any fitment, installed very easily, just like a glock plug. When installing you can clearly see that it cannot being tightened down to much as you will see the rear of the frame start to bend inwards. Like I said, everything looked fi...
Read More...
Show
Sort by
Filter by

A 76% frame install

by Bradford Perry, from NM, United States Written on January 21, 2026
Either I got the first SI magwell that doesn't fit right directly out of the box or these are nearly a no-go for the pf940c 76% frames. I got it installed, but I had to use a combination of strategic filing, and my body weight to get it seated correctly to accept the retention screw.

If you're using an 80% frame you're probably good to go out of the box (all of mine were), but if it's a 76% maybe explore other options unless you don't mind a little bit more fit and finish work.
Best Used for:
  • 80% frames
Would recommend: Yes
Was it helpful to you? Yes | No

perfect fit for the Poly80 lower

by RyGuy46, Verified Owner from TX, United States Written on February 16, 2025
Perfect fit and looks great. Would highly recommend this for the Poly80 brand lower/grip.
Pros:
  • Price
  • Fit
  • Look and feel
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Magwell Strike Industry

by Archerybee, from WI, United States Written on February 20, 2024
Fits perfect and looks great on my P80 frame. Nice improvement!
Would recommend: Yes
Was it helpful to you? Yes | No

Works great with my Glock BUild

by Keo, Verified Owner from MN, United States Written on December 15, 2023
Have been searching for a magwell that would fit my Glock-build, was questioning what would work. I am glad to have found this magwell, works great. No regrets, would recommend for Polymer80 build.
Pros:
  • Cost & Functionality
Cons:
  • None
Best Used for:
  • Polymer80
Would recommend: Yes
Was it helpful to you? Yes | No

Great magwell

by Josh, from NC, United States Written on April 19, 2022
My hand fits a glock 17 frame better than a glock 19 frame but this magwell makes the fit on a glock 19 frame perfect. Cant beat the price either. Perfect fit in the polymer 80 frame too. Ive always been a fan of anything strike industries makes.
Would recommend: Yes
1 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Doesn’t fit gun well

by Cam, Verified Owner from WI, United States Written on July 13, 2021
The fitment of this is terrible. Its too easy to pull off. Looks cool but not practical. The 3d printed one I got from a no name ebay guy fits better then this. I dont what else to say but they are making write more, just dont fall for this one and get something else
Would recommend: No
5 of 9 found the following review helpful.
Was it helpful to you? Yes | No

p80 magwell

by Quansen, from WA, United States Written on June 22, 2021
Just what i was looking for at ap good price. Great color match as welll.feels great in my hand. Was easily insta0lled. Screw comes with loctite tape already on it spo you dont have to bother with that. Overall great product
Would recommend: Yes
1 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Cheap broke first time use

by Sasquatch, Verified Owner from CO, United States Written on April 11, 2021
I was in the field doing Reload drills mag well cracked and a half after second mag slap complete trash. .
Pros:
  • None
Cons:
  • all
Would recommend: No
6 of 7 found the following review helpful.
Was it helpful to you? Yes | No

terrible fit

by Jorden G, Verified Owner from CO, United States Written on February 22, 2021
I bought this product for a pf940c and will not fit. Tried to trim the part to get the back strap portion to fit. When it finally got into place. The chamfered portion of the mag well doesn’t sit flush with the frame. I’ve used multiple parts from strike industry before. This is by far the worst product Iv had experienced with.
Pros:
  • Non
Cons:
  • fit & finish
Best Used for:
  • No one
Would recommend: No
6 of 6 found the following review helpful.
Was it helpful to you? Yes | No

Made it extremely difficult to seat mags

by Clayton, Verified Owner from AL, United States Written on January 21, 2021
I tried using my 15 round Glock mag and it it was extremely difficult to seat because the magwell extended past the bottom of the mag. I then tried my 15 round Pmag and it too was difficult to seat because it was pretty much flush with the magwell
Would recommend: No
3 of 3 found the following review helpful.
Was it helpful to you? Yes | No
There are no reviews that match your criteria. Would you like to review this product?