Best lightweight barrel for my Colt Tactical Carbine

[The Dumb Gun Collector]

Hey guys, I have a Colt Tac Carbine that I have been running for 3-4 years now. It has been through a few carbine classes and is shot every weekend with a lot of full auto and 22 conversion shooting. I am thinking about changing the barrel to a lightweight profile. I know that won't be as optimal for full-auto, but I am OK with that (I have other uppers for that anyway).

So, I was thinking about putting a lightweight barrel. Who makes a good lightweight barrel in the shortest non-NFA length possible (including a pinned flash hider if necessary)?

GHB

[d90king]

Would a 6521 pencil barrel work?

[The Dumb Gun Collector]

It would I am sure. But where to buy?

[d90king]

It would I am sure. But where to buy?

I have seen a few posted from time to time... I don't know about these guys, maybe you could research their quality.
http://dynamicarmament.com/items/ar-15-barrels/16-ar-15-lite-barrel-1-9-twist-ratio-16-ar-15-lite-barrel-1-9-twist-detail.htm

[The Dumb Gun Collector]

Hmm, and CMMG makes this, a 14.5 with perm flash hider....


http://cmmginc.secure-mall.com/shop/?cart=1956681&cat=67&

[MGD]

forgive me if this info isn't what you need, i'm certainly no expert, but....

isn't BCM coming out with a lightweight 16in middy soon?

http://www.bravocompanyusa.com/BCM-16-Mid-Length-LIGHT-WEIGHT-Upper-Receiver-p/bcm-urg-mid-16lw.htm

[Boss Hogg]

I believe CMMG discontinued their 14.5" midlength lightweight, but I have one and really like it.....weights 19.8 ounces stripped. Plenty accurate.