Dutch Beetleweight

[Niels - Team K.a.L.M.]

I'm currently looking into building a beetleweight.

I've set my eyes on using a pneumatic cylinder, a 1/8" 3/2 valve and a small compressor.
I have it lying around in working order and weighs in at around 800grams.

After adding up all the weights from the other components it leaves me just about 150 to 200 grams for the chassis/armour and all the bolts.

Some say the best defence is a strong offence but I fear that I'm pushing that statement too far.
Because if I push through my idea/design I'll end up with a half armoured 20kg tossing machine.

Any thoughts and ideas would be appreciated.