Airsoft GI Uncut has a quick video of the Knight's Armament M4 CQB URX 3.1 AEG done by GI Michael... "The Knight's Armament URX 3.1 OEM'd by G&P is another edition of performance rifles from ZShot. Externally, the upper and lower receiver are made out of an aluminum alloy for increased durability without increasing the overall weight. Towards the front of the upper receiver is a licensed URX 3.1 rail.

Another Shell-Ejecting AEG release from TOP Japan, the SR16 URX 3.1 Shell-Ejecting EBB that you can find right now at eHobby Asia... "Top (Japan) New Design Shell Ejecting Blowback System can make you enjoy the most realistic shell loading, firing, shell ejecting and Blow Back like a real steel, thus, operated by electric power. Rate of firing can be up to 11rounds per second!

Daniel goes over this new baby that has been delivered to Airsoft GI by G&P... "We recently received the brand new Officially Licensed Knights Armament Co. URX 3.1 M4 by G&P, so we decided to take it for a test spin. The rail featured on this gun is one of the shortest versions of the KAC URX rail that we have all grown to love, and has been combined in a high performance, reliable platform, perfect for those looking for a high speed, low drag rifle.