G3
 

Can you tell me what parts I would need to make that G3 if I started with a CA G3? Also, is there a way to mount a red dot or something on top by the sights or do I need to install a rail.

Hey mate, that's not a G3.

SR-25

Parts you need- http://www.redwolfairsoft.com/redwol...l?prodID=22183
lol, as said by others, that's no HK, mate...

As for mounting a scope or RDS- http://www.redwolfairsoft.com/redwol...il?prodID=8797

Oh, haha my bad. Looks like it to me.

http://www.sgfalli.de/waffen/image002.jpg

If you want to mount optics, there's high-mounts with use a claw-type attachment to sit itself on (or the Guarder one that clamps down), OR low-mounts that screw down and clamp to the gun.

Browse around Redwolf Airsoft and you'll see some the mounts I'm talking about.