William

I really can't believe I'm the 1st review on here!!! Especially given how great these sights are! I'll tell ya's these are quite literally the BEST iron sights I've ever looked through, bar none as far as type of weapon, I freakin LOVE EM...I could guarantee how great these are but ya'll don't know me, but I absolutely can swear by em!!!!

April 8, 2021

Aaron

Best BUIS on the market. I run these sights on 3 different builds. The look through design allows for dead on precision. Hands down the only iron sights worth buying

June 14, 2021

Kyle

I've got these on 2 different CMMG carbines. They are extremely well made, very easy to adjust with no tools needed, and lay flat and beautiful on the rail. Made is USA. Pricey but love em.

September 2, 2021

Mikey

I'll repeat what the other reviewers have said. Best, quick sight pickup. I run the smallest aperture, get everything adjusted and then set up a red dot purely off of the UD C4. In low light the red dot is a nice aid. Best AR sight I've tried and I passed some expensive versions of other "name" sights on to other folks.

May 13, 2022

Mark

The C4 sights are the fastest iron sight picture for me to acquire, period. I use them on all my SBRs. I use them on my rifles that reach out and touch as well. The concentric principle that is in the design brings my speed and precision to a new level with irons. The materials and machining is excellent, extremely durable and smooth consistent function. The overall design for sighting in and for shooting out to distance has been well thought out and has no equal for irons. I also appreciate the ability to store the distance aperture to the side. The company has been very prompt and professional to work with and a pleasure to talk to. These are my rifle irons on all my builds whether trainer or duty. I will continue to buy.

September 23, 2022