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AR-15 FRONT SIGHT BENCH BLOCK Reviews & Ratings

AR-15 FRONT SIGHT BENCH BLOCK

Big, tough, polyethylene block gives fitted support for installing/removing the front sight assembly on mil-spec, AR-15 rifles and carbines. Precision-machined and clearly marked on both sides for driving the mounting pins “IN” or “OUT” of the sight. Accommodates the sling swivel, plus, includes provisions for removing the gas tube roll pin.

SPECIFICATIONS:

Material: Polyethylene
Color: Black
Diameter: 4"
Thickness: 1-11/16"

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Reviews Summary

The AR-15 Front Sight Bench Block has garnered mixed reviews. While some users found it essential for removing pins and praised its utility, others faced issues with misalignment and inadequate support, leading to scratches on their firearms. Overall, it seems to be effective for mil-spec ARs, but many recommend modifications for broader applications.

What Reviewers Are Saying

Product Effectiveness

55%

Several reviewers found the bench block helpful for pin removal tasks, particularly when working with mil-spec AR-15 front sights. It simplifies the otherwise cumbersome process of driving out taper pins, making it a preferred tool for experienced users.

Design Flaws

70%

A significant portion of reviews indicate dissatisfaction with the block's design, particularly regarding misaligned holes and lack of support for various barrel types. This has led to issues like difficulty in striking pins squarely and overall frustration for users.

Compatibility Issues

60%

Many users reported that the bench block does not fit all AR models, especially non-milspec variants like S&W. The misalignment of pin holes with the different barreled configurations often necessitated modifications or rendered the tool ineffective.

Quality Control Concerns

50%

Some reviewers mentioned that poor quality control has resulted in inconsistencies in the product, such as misaligned holes and overall fit. This highlights a need for better manufacturing standards from the brand.

User Experience

65%

While some found success using the block with minimal effort, others noted a frustrating experience, suggesting that users should carefully evaluate compatibility before purchase. Overall frustration may stem from product expectations versus actual performance.

Customer Photos & Videos

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AR-15 "A" frame front sight post Bench Block

This bench block worked okay. It is a 2 sided block, one side to drift the tapered pins for the front sight out and one side to drive them back in. The side to drift the pins out the tolerances were a little off and didn't align with the bottom holes where the pins are supposed to drift out to. Also trying to fit the front sight post in the machined area was really tight. I was still able to fenagle it in there good enough to get the pins out, but the pins did mar the surface and again the front sight post didnt align well causing the pins to not align with the holes below. Maybe I got the bad apple, but definitely need to check those tolerances.

by SAM G. on May 11, 2024

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Not that great

FSB rolls when striking the taper pins. Very hard to get solid hits. Prepare for a lot of frustration and scuffed finish. With one more channel machined Into the block to properly support the bottom of the FSB this would be a great tool. As it stands I feel like I wasted $40.

Pin direction wrong for Stag Arms.....

I thought brownells knew something I didnt when I tried removing the pins from my Stag Arms FSB. Admittedly I am a rookie with tools which can be dangerous. Unless pin removal direction is universal, which it isnt, the words "Pins In" and "Pins Out" should not be printed on the thing. Useful tool otherwise......

My experience of this product

I gave this product 2 stars only because it does not support entirely the FSB especially at the critical points. When FSB is laid, it is tilted thus the pins are not perpendicular to the base which will make it harder to punch out, especially if the pins are real tight. Brownells should made this bench block from the mould of FSB so that all critical points are properly supported instead of milling it out from the blank.

Needs modification

Works just as intended for removing pins with the factory stock retainer. It cannot be used when re-installing pins after addition of railed free float tubes. Needs more think time.