*"So - Is there any law against ... !"*

[RollsRoyce]

... me mounting a 50 Cal. Mini-Gun on a Tripod on the SNOUT of my 54G? ...

Best, RR ...

(Just to keep my hand into a Boating related subject) ...

[fullkeel7]

Going duck'n are ye?

[chucklesR]

I reckon you could mount it, if you could buy it.

RR, there are silly questions, and then there are silly questions.

[norsearayder]

u can do that ,first u got to get an ok for class 3 dangerous weapon permit[$200] from the feds then u can buy it.i saw one on a gold dredge up north america land of the free and dam well armed

[zz4gta]

Yes, you'll need to contact a class III dealer.
Have a fairly clean record.
Pay your $200 tax stamp (I haven't seen it worded as a "dangerous weapon", aren't all weapons potentially dangerous?)
Send in your paperwork. You'll need a recent photo ID and usually a copy of your drivers license.
In the area of Reason For Ownership blank: fill in something like "collectable", "self defense", or "all lawful purposes". Usually works. Wait a couple months, and BANG! you can legally own one. And enjoy paying $3 per round for cheap surplus ammo.

Search class III firearms or NFA items and it should get you more info. Here's a little taste...
MA-centric NFA FAQ - Northeastshooters.com

Check your local laws first.
I'm not saying I own any class III goodies... maybe I just know the system?

[Bene505]

And if you do it, post the pictures!

[scottyt]

and look at it this way if the wind dies and the motor conks out you aim it backwards and use the recoil to get home. and for mini gun you are talking some real cash, or have to get your SOT