Krytac TR47 Rotary Hopup Unit for TR47 Airsoft AEG Rifles

"Awesome, as other reviews stated, you have to sand it down a little in a stock cyma ar47, but I switched the gearbox in mine to a specna orion gearbox, and it fit perfectly without sanding. I got one for a stock cyma standard ar47 and one for the orion one. Works about as well as you could wish for!

"Bought this for for my CYMA Platinum AR-47 10.5” M-Lok

It doesn’t fit properly from the start, so you need to sand down the part above the single screw. Maybe 2 minutes of sanding and it fit nice and snug.

Fred’s great, no issues, and this fixed the hopup adjusting on its own problem.

Would recommend for any CYMA AR-47

"File the part that is above the single screw with a coarse or medium grit sandpaper and it'll fit the CYMA Platinum Mk47. It'll solve the hop up reset problem with the stock hop up.

After filing, great fitment and the clicks and numbers inscribed really help in dialing in that hop up bucking. I didn't take it apart, but from inspecting the hop up there's already a permanent flat nub so you don't have to worry about having spare bucking nubs to install. I used a ZCI barrel and Maple Leaf MR HOP bucking.

"Bought this to replace the stock hop up in my CYMA AR 47. It does not fit perfectly. After some filing for a couple minutes, as it is a plastic hop up, it does fit nice and snug. Feeds well and works great when paired with a krytac bucking.

Moral of the story, if you want a hop up that doesn't vibrate out of placement on your CYMA AR 47, this will work with some adjustment.