EMG x Retro Arms CNC Machined Aluminum Hop-Up Unit for AK Series Airsoft AEGs (Color: EMG Blue)

"This hopup unit is amazing, it’s very sturdy and the bar maintains its position even after long use, contrary to the standard plastic v3 hopup. Not only that, but putting the nub into this unit is as easy as 1,2,3. I put this in my LCT Ak12 as a replacement to go with the Arcturus PE gearbox I slapped in there (also highly recommend). This hopup absolutely flings .30bbs upwards of 200 feet. This hopup is definitely worth the purchase if you’re looking to upgrade your Ak airsoft rifle.

"The hop is indeed up on the particular device.

"This is a well-made, precisely machined hopup unit. It required no fitting, sanding, or dremeling of any kind to install into my LCT LCK104. The only thing I wasn't 100% satisfied with was that the screw that holds this hopup unit to the gearbox wouldn't thread all the way in. Not a big deal at all though as it's still held solidly in place, it just looks kinda funny. Just to be clear, this is solely an aesthetic issue, not a functional issue. I tried Prometheus Purple, G&G Green, and Madbull Blue hop up buckings. While they all fit, the Madbull was a substantially tighter fit than the rest, and I had to use some white lithium grease as a lubricant to ease the bucking into place. I recommend the Prometheus Purple and the G&G Green buckings as they slid in easier, while still providing a perfect air seal. I had no feeding issues using G&P AK74 mags and BLS biodegradable .32 gram bbs.