whould this fit in my real sword 56?
 

http://www.airsoftparts.ca/store2/in...roducts_id=397

looking to upgrade my hoop up chamber so i dont have to worry about nicking the feed tube when i ram the mag in. wonder if this cnc unit would fit.

Buy it, and let me know! lol

Not without modification. IMO it's not worth the trouble. The RS hop up is a good unit, you're better off investing in a nice firefly nub and bucking.

Notice the lack of material in the upper rear portion of the RS hop up vs the prowin.
http://shop.ehobbyasia.com/media/cat...5H01_mark1.jpg
http://www.airsoftparts.ca/store2/images/Img_2919.jpg

Ya but nothing goes to that area. I don't think it would block the mecbox. And the screw taps looks to be in same position. Main consern is the actuating arm ( or what ever its called) and slider might not fit.

Yeah i purchased a Prowin and you need to do some modifications. If you want a better Hopup get a KA Hop up

It will work, but no need for it.

The point of the ProWin hop-up is to screw it to the mechbox to do tests outside the receiver.

For the RS mechbox, you will have to do some modifications to make it work.
If you need a new hop-up unit, as said, go with KA or buy the RS one back.
Or basically any AK hop-up will work.