Okay...this is a strange one.  

I just picked up an assembled CAR-style upper off the EE for a decent price.  The term War Bastard comes to mind for this one.  PM upper, unknown chrome-lined heavy barrel EXTENSIVELY reworked.  Soldered flash hider on an 11.5" barrel. Vintage FSB... roll pinned (seller forgot to mention that one) to a barrel reprofiled from the handguards forward to pencil diameter. Weird, weird little thing, but oddly charming in its own fuggly way.

Two problems: FSB roll pins need to go; since it is already mated to the barrel this should just be a matter of driving out the pins and replacing them with taper pins...right? Please?

Second problem: there are no heat shields in the hand guards––because of the heavy profile? They are six hole, but don't look to have ever had heat shields.  Are there carbine handguards that will fit a barrel like this?

i've seen some like that.  i think it was just a cost cutting measure from some aftermarket company that produced them.

how heavy is the barrel?

here's a couple of pics of carbine HG's w/liners on my 6.8spc HBAR, that were taken when I  was mocking it up...they fit fine



ETA: and you'll have to taper ream the fsb pin holes before you can install the taper pins

As noted by crackedcornish, you'll have to ream the holes with a taper reamer to use taper pins...Why not just use straight pins if the holes aren't tapered??? A straight pin of mild steel can be made to fit tightly...  

I'll post some pictures of the barrel tonight, but it looks pretty close to yours, Crackcornish (and by the way, nice hand guards!!)

The roll pins look like standard 1/8"; so you'd say just get some solid 1/8" pins, a punch, and have at it? I may just do that.  Any recommendation on where to get pins?

http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=277

AR0020DOW 20 - Front sight dowel pin, each (2 required)  $3.00

Cracked - did JT do those HGs for you? They are tits! I actually atalked to him about doing a set like that. They look great bud. (But where's the REST of the carbine?)

yes, and he said he didn't like doing them at all because of the all of the ribs, and he wouldn't do any more of them

now that it's finished, the rest of the carbine resides in a state that allows collapsible stocks, bayonet lugs, flash hiders, and large capacity mags.....unlike mine