Matrix SPR Type Flip Up Folding Front Sight for M4 / M16 series Airsoft AEGs

"Does mostly* exactly what it's advertised to do, nearly a drop in replacement for an a2 style front post, but folds down so it doesn't get in the way of optics. It's very stable after installation and doesn't seem like it will be moving at all

*The only issue is that the hole on back of the assembly is sliiiightly too small for a gas tube to fit in, so if you're using it as a replacement for an existing sight post, you'll run into an (easily fixable) issue. You can either bore out the hole a little bit, or chop off the end of the gas tube, I bored out less than a mm from the inside and it fits perfectly now. It'd be nice if you didn't have to do that, but it's a simple enough fix

"Bought to replace the site that came on a used echo1 platinum I bought (someone took a dremel to it). Only issue is the echo1 site uses pins and this uses Allen keys, which it doesn’t come with either. So I used a drill press and drilled it out to accept pins. Worked, but the distance for where the holes are compared to the back of the site that presses on the handguard cap are a smidge forward ( I drilled through the Allen holes so this is based off them) making it alittle off. Had to ream them some to work.

"I enjoy the perfect fit on my cyma m16-a4 but I could not find the right wrench to install the screws, it’s not loose and is good for a AEG upgrade.

"honestly this sight is awesome, but when it flips up it wobbles and its loose. I like it very much and its a great buy!

"The sight itself is great and works how it should but it does not come with any of the tools needed to attach to the barrel (Screws and a pin) and they don't give the specs for the sight so it's a pain trying to find the right size pin and screws to use on this. Otherwise, I'd say its a good product

"As evident in the photo this sight does not have a hole for a gas tube, so you can either attempt to drill your own or do not use it as a gas block. Other than that, not bad.