It would make sense to do a knock-down, drag-out winter build...
http://www.youtube.com/watch?v=j3HO4GZomlI
Notice anything funny about this M4 adjustable stock?

Full-On custom M4 sniper rifle, BELT-FED!! Imagine yarding this out of a fitted case, and watching the jaws drop.

From the tip of the Allen-head studded silencer can to the end of the gorilla-length (adjustable!) CAR stock, the whole upper is 100% Homemade.

What looks like truncated Speer shells is actually an elaborate casting of real linked ammo. The trick fold-down charging handle was turned on my 9 x 20 lathe.

Trick millwork adorns the top of the feed cover on my Shrike. A variable power scope from a clone M14 Airsoft rifle, along with its picatinny rail, was mounted in place. Notice the texture paint along the comb- good for a no-slip cheek-weld.

Sunlight gleams from gloss black enamel. Gloss, on a sniper gun? Yes, I'm asking for it!
This gun is huge.

Look very close at the links. they're loaded "brass to the grass", but the dead giveaway they are a casting?
The bottom link has a center band on it where the brass should be exposed, hence the above term for starting the correct end of the belt into the feed.

Only Killbuckets makes guns that can dwarf railroad ties.
The inner barrel goes all of the way to the muzzle tip of the silencer can, and is a Unicorn teflon'd tightbore.

The ONLY original parts you see are the lower receiver, that's it. And you don't see much of them! The magazine is an off the shelf giant hicap that I motorized myself with a modded servo:
http://www.killbuckets.com/magmod.htm.

What do you think?

Killbucket's Black Bess with a fresh new SAW for size comparison.