by
Michael Lockhart,
Verified Owner
from GA, United States
Written on June 10, 2025
They are well built , and extremely durable and do exactly as intended to do.
Pros:
- Durable (billet, not MIM).
Cons:
- Bulky
- Little pricey but worth it overall
Would recommend: Yes
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by
Niko R,
Verified Owner
from MD, United States
Written on July 28, 2024
Same rear sight I deployed with. Top Notch and worth the wait for me.
Would recommend: Yes
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by
Rebel Yell,
from MO, United States
Written on February 13, 2024
This has to be the best rear peep sight I've ever purchased. I realize there are are a lot of you who depend on scopes and such, but I advise that you have backup iron sights for your AR type platforms just in case. This particular rear peep is dead on from 100-600 yards and is quality made and still leaves me room to add my scope if I wish. Your not going to be disappointed with this attachment.
Best Used for:
- close and long range shooting
Would recommend: Yes
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by
UTG35,
Verified Owner
from AL, United States
Written on February 4, 2024
I bought this to train with my AR-15 for A4 post and rear sight use. We have this sight on M4’s that we shoot with for competitions in the Army guard. My only complaint is the sight picture at 100 yards is super small. It’s just how it works though.
Would recommend: Yes
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by
Josh,
Verified Owner
from KS, United States
Written on October 25, 2022
This rear sight is super gucci is you throw it on a Colt monolithic upper for a gnarly throwback vibe. The ole boy is crisp on the adjustments and slaps hard. Very easy to sight in and seems to hold zero swell.
Would recommend: Yes
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by
max,
Verified Owner
from VT, United States
Written on September 29, 2022
Please by this if your AR has a FSP. There are many other to buy but this and the KAC rear sights are specifically made for a FSP. If your here from ebay seeing all those deals just buy it from here you know its legit and its brand new. I was in the same boat. Ask any vet that has used a m4/m16A4 varient they will sear buy it i know i will. Cant go wrong also. The "my screw latch broke from tightening it". Well probably over did it. Like anything mechanical read the directions PLEASE! Yes they sell replacement parts not sure if they do on OP but read the directions and youll be just fine.
Would recommend: Yes
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by
Andyman,
Verified Owner
from CA, United States
Written on November 7, 2021
This BUIS was issued for the M4 as a rear iron sight. Man tbey are solid, massive. The great thing these sight have over others is that it allows your eye a better peripheral view. Sight is thin allows you to nagviate your eyes much quicker. The Army sure made me believer on these iron sight.
Would recommend: Yes
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Roverray,
Verified Owner
from OH, United States
Written on September 18, 2020
Very sturdy, easy to mount and use, low profile and stays out of the way. Very nice click adjustments, good enough to use all the time, range adjustments all the way to 600 yards. Opticsplanet ships it fast too!
Pros:
- Just what the USMC and the Army uses!
Would recommend: Yes
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