clamp on outriggers

[green74]

last week in ocean city, i saw a parker 2520 with telescoping outriggers with bases that clamped onto the rocket launchers. there was also a knuckle in the base so the riggers could be swung in. ive looked around and i cant find these bases. DOES ANYONE KNOW WHERE I CAN FIND THEM OR HAS ANYONE SEEN THEM?

[toothferry]

I have tigress clamp on mounts on my t-top. They don't clamp onto the rocket launchers...actually on to the tower.