I really like it; fitment issues
The dust cover is really well made and easy to install and remove. Like some other reviews, I ran into fitment issues, namely that it wouldn't swing open freely on my Aero upper. Took some sandpaper to it and it's all fine now.
Good product, but may require fitting
This product looks good, functions well, and is about half the weight of a standard milspec dust cover when compared on my scale. The only reason I gave this 4 stars is because mine would not swing open freely when installed on my Aero Precision forged upper. All it took was for me to shave off a bit of material around the two ends by the pin with a sharp knife, but it had to happen nonetheless. After the very minor fitting, it functions flawlessly.
Fantastic Alternative
The Ultimate Dust Cover is a great little accessory for many ARs. Standard covers have quickly-worn finishes, shiny silver springs, and often iffy fits in the receiver, and the tiny washers holding them in place are known to pop off when firing, at least with heavier cartridges. By contrast, the UDC is made from a tough, matte black plastic, sports a black spring, and uses a pair of spring-loaded plungers for mounting, making installation easier and preventing lost pieces. The plastic body minimizes weight and is even molded with a lining that actually seals off the ejection port, minimizing oil evaporation and providing a positive "pop" when closing the cover. The issue that prevents a fifth star is that the primary spring should have been made a little stiffer, or rather, its opposing ends set farther apart. Though easier to install, the looser spring allows the cover to bounce when moving and firing, and at least one of its ends is always sticking out to the potential detriment of a passing bit of hand or shirt. (I tried giving it an extra twist for strength the first time around, which resulted in a snapped spring tip and an order for another UDC.) While not much of a problem, it is the sole element that makes me miss the snappier original. But all things considered, the Ultimate Dust Cover is definitely worthwhile.
