Accessory Perk: Tripod?

[vicky_molokh]

Greetings, all!

I've got this weird idea of a biological or cybernetic augmentation that would allow one to 'deploy' into a 'stance' in which joints are locked in such a way as to provide superior bracing for a heavy weapon. In effect, getting the benefits and drawbacks of a Tripod (complete with a 180-degree firing arc, and a 3-second setup/teardown time). But I wonder if it is balanced, as tripods seem to have a very significant cost and weight, and they out-perform many levels of Huge Weapons (ST) under a limited set of circumstances.

What do you think about it?

Thanks in advance!