The Cobratac CBUS set is sweet, made out of tough polymer, great design as well. Not needing a front sight adjustment tool is very cool, especially when my buddies and I are at the range and I see them fumbling around looking for one and me..... just reach up and give a twist and I'm sighted in. Great product, I would and have reccomended to friends and others at my lo all range.

Great material (polymer) very durable . Im very suprised how good these came out to be. I bought these for my ar15 build because i was in a budget thinking later on i would need to replace them. I was wrong . I do my training with these and they work out great !

First off, let's make sure we're apples to apples. These are ALTERNATIVE magpul buis, not clones. That being said, not fair to use magpul buis as a "standard". Instead, let's talk what $30 is going to get you (thanks for the free shipping!) Out of the box - securely packaged and all parts /tools accounted for. Preinstall: all parts look to function as needed. Some residual plastic from casting but nothing that inhibits functionality. Noted assembly of the release switch was slight off but snapped into place with a slight push bug again nothing that inhibited function of flipping. Mounting: easy install. A bit snug but if you were expecting different, you haven't installed polymer on a rail before. A couple taps and a couple turns of the wrench and we're set. Mechanical zero rear: for anyone who has never done a mechanical zero on irons, do some research then come back as this will be useful info. Positive clicks sometimes "soft" or "dull". Definitely more so toward the end limits. This made it a bit difficult to center the rear sight but nothing more than counting to 90ish a couple times. Mechanical zero front: didn't bother. Had my RDS already zeroed so raised the post. Snug turns on the knob reassure me that it wont go out of whack easily. Function: both sights pop up easily when engaging the pop up switch. Both fold down and lock closed. Note that the rear sight aperture must be on low light to down completely. Regular aperture my be a hair small but thanks to polymer, is easily widened if desired. OVERALL DAMNED PLEASED WITH THIS PURCHASE! FOR $30 YOU HAVE SOLID POLYMER FLIP UP BUIS. DON'T PLAN ON SHOOTING A FLEA OFF A FLY ON A FROG ON LOG. THESE ARE BACKUPS AND ARE MEANT TO GET YOU BY IN A PINCH. THAT MEANS STILL BEING ABLE TO EFFECTIVELY PUT ROUNDS DOWN RANGE. Maybe look at updating the design to move the rear sight aperture bar further forward. Will update after range tested!

Great product for the price Solid build .

I wanted a good pair of polymer BUS, and that is what I got. Sturdy, mounted well, good spring strength, and half the price of Magpul. Good buy, and if I need some more sights one day, I will buy these again.

These back up sights are an ABSOLUTE value and I wish I would of ordered more. They work just like or even better than Magpul's polymers and making adjustments are a breeze without the need of special tools. I'm definitely going to order these for all my builds.

These sights are functional, quick to deploy, and work well. The only thing I do not like is the attachment method. IF these could be attached with a throw lever or even a coin I would be happier. I just don't like needing to use tools for my AR. Other than that though they are GREAT!

These sights seem well made. There are a few things I prefer on the magpul's, but at half the cost they work fine

Back sight seems to be good. Front sight post seems to be a bad design. It wobbles a lot. If that was fixed it would be a great sight

New website lay out is much better and more user friendly as well

Wouldn't fit DPMS rail without tapping with rubber malet. They are working well so far.

Definitely you get what you pay for. There was some excess polymer on the sights, especially bothersome in the "peep hole" of rear sight. Fit and finish not up to par with Magpul. They do seem sturdy for "plastic" sights, but have not actually sighted/used them yet.