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Midwest Industries AR-15 Lower Receiver Block
$41.95 $36.95 Save 12%
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Most Helpful Positive Review Strong Multi Function Receiver Block
Highly recommended product, used on a recent build and it made it so easy that I breezed through it in 20% of the time. MI thought of everything. The only downside for me is the small parts tray, I already have one so having that area be a little thicker would be preferred; but, that is personal preference.
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decent lower vise block

by James Phillips, Verified Owner from TN, United States Written on October 12, 2025
This lower vise block is sturdy works well and has a variety of uses when building your AR
Would recommend: Yes
Was it helpful to you? Yes | No

The Swiss Army Knife of Vise Blocks

by Bigtime, Verified Owner from CA, United States Written on August 17, 2025
For the price, this is hands-down the best vise block I’ve used. I own a few others, but this one really stands out. It doesn’t just hold your lower receiver through the mag well — it goes the extra mile. There’s a cutout perfectly designed for driving in your trigger guard pin (a task that usually feels like juggling porcupines), and even a dedicated spot to secure your gas block while installing the gas tube pin.

It’s like Midwest Industries asked, “What little things drive builders crazy?” and then built a tool that fixes them all. Another smart, practical product from a company that clearly gets it.
Pros:
  • not just a one trick pony
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Ar vice block

by Jack Eaken, from PA, United States Written on April 24, 2025
Awesome product and fast shipping, highly recommend,will definitely be ordering more from these guys,good job keep up the amazing work
Would recommend: Yes
Was it helpful to you? Yes | No

Who knew I need this!

by Whip, Verified Owner from NV, United States Written on March 29, 2025
Well I debated do I really need another tool to aid my AR15 build. This and the reaction rod made life easy. This helped with the gas block more than I expected. Bottom line it’s worth it if you have a vise to put it in. Shipping was fast from OP.
Pros:
  • solid
Cons:
  • None
Best Used for:
  • AR15
Would recommend: Yes
Was it helpful to you? Yes | No

Hesitant purchase so Necessary

by Whip, Verified Owner from NV, United States Written on March 28, 2025
Well I debated do I really need another tool to aid my AR15 build. This and the reaction rod made life easy. This helped with the gas block more than I expected. Bottom line it’s worth it if you have a vise to put it in. Shipping was fast from OP.
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

great product

by Scott, Verified Owner from AR, United States Written on December 28, 2024
This reciver block makes working on your lower so much easier. Placing in a vise to hold vertically or on a table to hold horizontal is great!
Would recommend: Yes
Was it helpful to you? Yes | No

Nice block for working on your AR

by SoCalJoe, Verified Owner from CA, United States Written on August 28, 2024
This Lower Receiver Block is seemingly made of very durable plastic and is a great tool to have for working on your lower. I bought it primarily to hold the lower so I can replace the Receiver Extension (Buffer Tube) from Commercial to Mil-Spec. This block did the job. I did put a bit of wood between the block and my vice jaws for two reasons 1) to protect the block, and 2) because the way it sat in my vice the jaws were not in a place where it would bite down evenly (meaning one of the jaws fell inside a contour of the block). Adding the pieces of thin plywood spread out the pressure and it worked perfectly. Not a fault of the tool, but a fault of my vice.
Pros:
  • Affordable
  • sturdy plastic
  • plenty of features for common tasks
Cons:
  • May not fill well in all vices
Best Used for:
  • working on AR platform rifles
Would recommend: Yes
Was it helpful to you? Yes | No

Quality produnct

by Huffdaddy, Verified Owner from VA, United States Written on August 27, 2024
Nice quality product. Good tool to use for an AR build
Would recommend: Yes
Was it helpful to you? Yes | No

A must have tool

by Ernie, Verified Owner from ME, United States Written on July 2, 2024
I purchased this lower receiver block during my first AR build, and have continued using it for other builds and general maintenance. I have used it multiple times for setting roll pins in the gas block/tube, and while installing the bolt catch in the lower. It also comes in handy for disassembling the bolt extractor/ejector for cleaning and when properly checking headspace. I'm sure there are many other uses I'll find for it along the way. It's designed and built well. A must have tool for assembling AR's well. Only gripe I have is it fits loose in my lower's magazine well, causing it to slide off the magazine catch without even depressing it. Had to be extra cautious with hammering in roll pin for bolt catch.
Pros:
  • utility
  • Design & Build
Cons:
  • magazine well fitment
Best Used for:
  • Building AR 15s
  • general maintenance
Would recommend: Yes
Was it helpful to you? Yes | No

midwest industries Ar -15 lower reciever block

by Brandi Vann, Verified Owner from AR, United States Written on May 17, 2024
Works great!! Absolute must have when working on an AR-15. Holds the gun well so there is no damage while making repairs or adding accessories
Would recommend: Yes
Was it helpful to you? Yes | No
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