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AR-15/M16 LOWER RECEIVER VISE BLOCK Reviews & Ratings

AR-15/M16 ACTION BLOCK SET

Heavy-duty blocks allow you to firmly clamp AR-15/M16 receiver halves in a vise without risk of crushing, twisting, or otherwise distorting them when applying vise pressure or torquing the barrel nut. Keeps your rifle secure for safe, effective cleaning, assembly, and repair. Unbreakable urethane vise block takes all the clamping force, so your expensive lower receiver won’t be damaged or distorted. Insert block into the magazine housing from the top or bottom, then clamp the other end in your bench vise. The magazine catch locks to the block, safely and securely holding the rifle for assembly, disassembly, cleaning, or repair. Will not mar or scratch the finish. Fits tightly in most receivers and may require filing to fit others.

SPECIFICATIONS:

Set Includes:
- Upper Receiver Action Block
- Lower Receiver Vise Block
Material: High-Density Urethane Plastic
Color: Black

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Reviews Summary

The AR-15/M16 lower receiver vise block receives mixed reviews, with many users noting that it often requires sanding or filing for proper fit. While it offers strength and durability, numerous customers expressed frustration over the poor fit, leading to discontent regarding quality control. Some users appreciate its utility once modified, but several highly suggest seeking alternatives.

What Reviewers Are Saying

Fit and Compatibility

80%

A significant number of reviewers reported that the vise block does not fit well with various AR lower receivers out of the box, often resulting in the need for extensive sanding or filing to achieve compatibility. This has led to disappointment and concerns regarding product quality and versatility across different brands and models of AR receivers.

Product Quality

65%

There were consistent complaints about the overall quality control of the vise block. Many users noted poor mold dimensions, resulting in oversized tools that require users to alter the product before it can be effectively utilized, which they felt was unacceptable for a tool designed for precision work.

Ease of Use Once Fitted

55%

Some reviewers, after modifying the vise block to fit their lower receivers, found it to be effective and sturdy when performing AR assembly or maintenance tasks. They liked the security it provided and noted that, once adjusted, it made their work easier, demonstrating potential despite the initial fitting issues.

Value for Money

40%

While some users feel the tool is priced competitively, they express that the cost should justify a product that works as intended right out of the box. Others believe that its affordable price is worth it if you are willing to put in the extra effort to customize it for proper fitting.

Customer Expectations

50%

Many reviewers conveyed that they expected a higher standard from Brownells, a well-known brand in the firearms community. They emphasized that tools should not require alterations upon purchase, indicating a gap between customer expectations and actual product performance.

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Doesn't fit

I should've read the reviews. Doesn't fit just gets stuck. I thought I could trust Brownells.

by Bobby M. on December 14, 2024

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avoid this vice block

good lord..."shave to fit" really? save your money, spend a little extra and buy a "NO-MAR" that actually fits and works. very disappointed that Brownell's sells junk like this

by mike on September 25, 2024

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Was this review helpful? 1

lower block will not fit ar-15. To big.I

I bought this kit to work on my 7 ar-15's and the lower block will not fit any of them because it is way to big. Not even close. What a waste of time and money. Buy a different brand.

by sean on August 03, 2024

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Was this review helpful? 1

Does Not Fit

I have tried this block on at least 6 different lower receivers. It does not fit. Get stuck each time. Poor quality control. I do not recommend purchase of this item.

Would not fit!

I have a BCM lower that this block would barely fit. In fact it wouldn’t even go in half way which I then struggled to get out. Not sure if was made wrong or just doesn’t work with BCM. Looking for something else.

by Dave on July 07, 2024

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Doesnt fit into mag well

It's super tight to fit in, as in I couldn't fit it. In the videos I've watched, it seems this wasn't always the case, which is odd. I would suggest spending a bit more and go with the midwest version 100043933

by Lawrence on May 09, 2024

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Was this review helpful? 3

For a piece of plastic that is almost 30 dollars

For the price you are paying for this product, you would expect it to work as intended. Sadly, this product is flawed; looking from the top down, there is a noticeable size difference from one side to the other. (And I don't mean flipping it either) If you try to place your lower receive on this, you might get very jammed in place and maybe even cause the lower to split with enough force. If you are looking for an alternative, look into NO-M.A.R vice blocks, the material they use is cut to perfection, and it is very strong.

by McKay S. on April 11, 2023

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Was this review helpful? 1

DOES NOT FIT CHRISTIANSEN ARMS CA5FIVE6

This product does not fit inside my lower. I have a brand new Christiansen Arms CA5FIVE6 lower chambered in .223 Wylde. IT will go in maybe half an inch then binds and I cannot get it to go further.

Does Work

Does not fit on the following lower receiver... Aero Precision M4E1, Anderson lower for 5.56/.223, RRA LAR-15 rifle's lower receiver, S$W Sporter II rifle's lower receiver, APF lower. In fact, none of my AR lowers or rifles can be used with this product. Once inserted, this vise block has to be either wiggled out or knock out. Quite a problem. I would not recommend this product AT ALL!

Doesn't fit my Aero ME41 lower receiver.

Not sure how you can mess up a rectangular piece of plastic but this does NOT fit my AERO M4E1 lower receiver. I will need to shave parts of it down for it to fit properly.