actually the slide and frame is compatible, with the 17 not sure about the 18 but they should be similar since they are both based off the marui system. Buddy of mine fitted a Gaurder Frame and slide onto his HK3P 17 which is esentially the WE since its OEM HK3P.

Internals should be similar to a certain extent if the frame and slide fits.

Checked some Taiwan forum posts, and they said that the slide is not compatible... http://www.airsoftcanada.com/images/...s/icon_eek.gif

they are supposed to be exactly the same but some parts will need modding to work as with any other clone.

Dude, the prices are that bad. That's a 5.1R meant for children to use as their "learning gun" I think the fps is only like 180-200fps on that gun. :cheers:

You get what you pay for in airsoft my first gun was 300$ a few years back that was cheap just a g36 forget the brand but it was nothing but trouble. Then i got a G&G EBR 900 just for the gun havent had a problem yet.....well the gun docs had fun changing the spring ;)