[grass]

Thanx for the info. I have Euro 120 and got the answer from the seller that the wing kit is not intended for the Euro series, however it can be mounted.
I want the kit to make the gun neutrally buoyant and increase the overall mass to compensate the recoil.
Using the RA spears with the gun results in inaccurate shots (the spear goes up on shots longer than 4m). The original Riffe 6.75 spear is too weak to withstand double bands and direct riff hits. I bent it on my first dive.
I will now order couple of 7.1 threaded Riffe spears and add the spear tips to them in hope that it will survive.

I think I can handle the wing kit as I don't really move the gun a lot in the water. I dive deep and stay there, when I see the fish I usually track horizontally or turn the gun 90 degrees to track it vertically.