Green Blob Outdoors Tactical Micro Iron Flip Up Sight Set - $14.99 + Free Shipping

These are complete garbage. Don't waste your money.

Couldn't resist seeing how they compared to the 'actual' YHM QDS (since I own several sets of those for various builds):

My review on Amazon:

Appearance clone of YHM QDS BUIS.

Two things keep this from getting 5 stars. (1) Roll pin holding the rear adjustment knob falls out. Put back in with vibratite, but come on. Its a roll pin, not supposed to fall out. (2) Flipping between the rear apertures actually moves the adjustment knob...but only in one direction. So each time you flip to the CQB aperture it moves it forward, but not when you move it back.

Look, I understand these are cheap knock-off sites. But basic functions should work.

That said, I tried them on an upper that I use as a 'loaner' for folks coming to the range and they do hold zero (if you don't change the aperture...). That was actually impressive. They've been out 3X now for about 530 rounds and no drift. Now if the aperture just din't mess with the windage adjustment...

I bought some of these a while back for a budget AR-15 build, not bad for $20. Same height as standard sights if you want to co-witness with a red dot or something.

I've got these in the 45 degree version. Really nice sights. Sometimes recoil can release them but who cares? Good buy nonetheless

These look like YHM QDS sights (knock off of course). Looking at the vendor, they also make a knock off of Troy BUIS as well. If they work they might make a decent set for a 15-22 as a trainer without spending $$$ on a second set.

YMMV, heavily!

EDIT: See my review, Wed, 2016-03-16 08:25.