The conversion Kit is available at Dentrinity Shop (from HK). Check its website.
However, I'm alittle disappointed at the gun. Here's my super quick-no-picture review. I'll try to write a more detailed one later on.
1) As it's grey, the injection points of the mold are pretty visible. This will most likely require some sanding (which may be a problem.. will write about further below)
2) 8.4v battery pack with 3 cells parallel and 1 across DOES NOT FIT in the forestock.
3) No cleaner rod - com'on...>.<
4) No fuse!
5) Was hoping to do a rear stock battery mod - I don't think its going to work out. Not enough space unless you extend the movable stock entirely. Even then, you can't fit a 9.6v battery >.<
So I brought it out to play stock yesterday (Sunday) and here was my impression:
1) Had to borrow a 7.2v lipo from my friend.. it fitted, but wasn't the best. I think the wiring has to be shorten to allow easier battery fitting
2) The BB curved up around 8 to 10m after firing... and that's with the Hop Up turned OFF! However, did occur as much after using full-auto and playing for a while. But as soon as I let it rest, it would start curving all over again. I heard the hop up sleeve was typically bad on STAR guns.
3) The body scratched pretty easily - I played in a forest and a part near the foregrip was scratched up pretty badly (to a lighter shade of grey). Since the body its not black, its very visible. As mentioned in my first point, I think if I tried sanding it down, there would be dis-colouration. I also used the mesh steel half mask yesterday, and it also scratched the body pretty badly when I had the gun up in the shooting position (I was aiming by eye since I didn't have time to calibrate the iron sights or put a scope on).
4) Like Vindi said though, the balance of the gun is pretty good. I didn't feel tired at all while holding it in the shooting position. But I would suggest getting a sling anyways.
5) Slight misfeeding from hi-caps (various brands) and mid caps (MAG). However, that might be attributed to having to spray some silicon in my mags to lube things up
6) Ohh, I tried the Vindi mod and interchanged the forestock with my JG 36Es'. Just for clarification, they were not 100% compatible with each other. The forestock pin holes didn't did not line up perfectly. So in the end, I used a M4 bolt and nut to secure it.
So overall, I really wasn't impressed by the performance and quality of the gun for the price I paid (around 200US). The gun can't be played stock for its role (something of a mid to long range gun). As I don't wish to get a Lipo, I have to now try to find a battery pack that actually fits. I think the SL-9 deals with this issue with a bigger forestock.
Also, I'll have to think of a way to protect the gun from scratching - probably buy a roll of camo-form camo tape and wrap it around the gun.
Comparatively, my JG G36 was very good when I first bought it. I didn't need to change anything for it to shoot straight and far. It was also super durable as well.
Out of 5, I would only give it a 2.5 for the STAR SL8
New Update: Was taking off the outer barrel to take off the forestock yesterday... and the part of the 'gas chamber' that the outer barrel screws onto broke right off! That part wasactually connected with crappy pot metal. I'm pretty mad right now, but I've superglued it back on. Hopefully the repair will take the stress of screwing the out barrel off and on. I might have to figure out a new battery location >.<