AR beltfed

Because a regular upper is just a chunk of metal, and a belt fed upper includes the belt feed mechanism.

>>33252388
Beltfed uppers are more complex. Also less common, so I imagine cost per unit is higher since they aren't pumping them out everywhere.

On a related note, where do civilians even buy belted ammo. I've never seen it. Do you all buy the links and belt it yourself?

>>33252409
Any idea where I could find schematics?>>33252509
Yup. You link them and toss the ammo in.

>>33252509
http://ammunitionstore.com/categories/linked-belted-ammunition/223-5-56x45.html

>>33252388
>tfw no cheap belt fed ar to bumpfire
There was one a few years ago that seemed pretty hyped, but now I never hear anything about it.

>>33252588
>$0.69 a round

Oy vey.

>>33252509
i link my own for .308

>>33252388
>Find way to harvest recoil pulse to feed belt
>use recoil pulse to strip boolit from links
>feed boolit into chamber
>still cycle reliably

You'd think that'd be easy but it's probably not.

>>33252599
Just buy a binary lower and 50 round drums.

More fun. Easier. No belt.

>>33252603
then buy the ammo cheap and link it yourself faggot.

>>33252388
Horse grease. See, horse slaughterhouses are all but gone in the continental U.S. (Hawaii actually has several dozen facilities spread out across the islands.) Belt fed uppers need horse grease.

>>33252635
i see you've never had to link ammo

>>33252388
>Also I'm a CAD certified engineering student. How hard do you suppose it would be to mill a receiver?
Oh boy.

Get ready for another failed /k/ "engineering" project.

>>33252653
That's some fine fudd knowledge.

>>33252653

the Tongans in Hawaii love eating horse

File: 1463460600068.jpg (101KB, 600x431px) Image search: [Google]

101KB, 600x431px

>>33252388
It's to pay for the return on investment for the engineering team, probably.

Or maybe it's just markup to keep an inefficient production method afloat, either way without an economy of scale, competition, demand, etc. it's not likely to fall.

Because it's such a niche market.

>>33252588
They should have just made the beltfed upper for non disintegrating 5.56 links.

>>33252388
Economy of scale. Many standard uppers are produced. Very few belt feds are.

Milling an upper to accommodate a belt should be easy. The problem would be modifying the bolt to feed off a belt.

>>33252540
Schematics themselves are probably intellectual property. You'll probably have to watch some YouTube videos of it, and various other belt feds to get an idea of how it works.

If thats not enough, I guess you'll have to buy one. That said, if you need one in your hands to figure out how it works, I'm not sure engineering is for you.