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9/22/2017 12:11:25 AM
Posted: 11/28/2005 7:02:57 AM EDT
did a search but didn't find any mention of these.

Anyone had any luck with one or tried one. They are
cheaper than the aluminum and I had a chance to look at both an upper and lower this weekend.
Seemed to be pretty nice and light. Supposed to be 5 times as strong as aluminum.

The upper had no spot for FA assembly.

Link Posted: 11/28/2005 10:09:34 AM EDT
[Last Edit: 11/28/2005 10:10:52 AM EDT by absit]
Tag. Bushy says their CF receivers are 40% stronger and lighter than aluminum.

"Lightweight Carbon 15 Composite Receivers - 40% stronger and 40% lighter than standard aircraft aluminum components."
Link Posted: 12/18/2005 8:38:21 PM EDT
I'm looking for this answer too.
Link Posted: 12/23/2005 11:53:33 AM EDT
I've had 8 builds using Vulcan lowers. I own a Vulcan upper but just am too chicken to build a rifle around it. My lowers have worked out well, except for a slightly tight mag fit. I usually just shoot a few hundre rounds through each one and sell them, though I have one I've kept for awhile.

I especially like pushing in the pins with a clamp, or whatever I have at hand, without worrying about marring the finish.
Link Posted: 12/23/2005 3:11:32 PM EDT
I have heard, the threading for the buffer tube strips out easily.
Link Posted: 12/23/2005 4:42:17 PM EDT

Originally Posted By olds442tyguy:
I have heard, the threading for the buffer tube strips out easily.



+1

See: Stripped Carbon Upper/Lower

From what I have heard I will just be sticking with Aluminum and trying to make everything else lighter. E.g. profiled barrel, lighter handgaurds, etc.

-C4-
Link Posted: 12/28/2005 10:17:23 AM EDT
I used carbon lowers in a few builds, they say they are stronger, but each one cracked in one way or another--i never had any problems with an aluminum one. Lower rec. are about $100-no big price difference there. As far as the weight, complete----around 7lbs. i'll carry a couple of extra ounces for the extra reliability.
Link Posted: 12/28/2005 12:33:43 PM EDT
3-4cav wrote: "I own a Vulcan upper but just am too chicken to build a rifle around it"

I bought one in like-new condition & have built it into a "junk-yard dog" build;

I took an old 10.5" w/ a silver soldered 6.5" XM-177 flash hider, wrenched off the flash hider & w/ a friend's help, we turned a 1" solid bar of 7075 T-6 into a 6.5" brake that we threaded on, blind pinned in 4 places & welded over the pins.

The Hesse/Vulcan polymer upper is way oversized; I had to make a shim to fit between the barrel extension and the upper to get a tight fit.

For carrier & bolt, I used parts out of my brother's TAPCO kit that came in for a short time back in 1999 or 2000; they are supposed to be colt parts & are so marked but are pretty well used.

Considering how oversized the hesse was, I would not recommend it.
Link Posted: 12/28/2005 12:34:59 PM EDT
You go first.
Link Posted: 12/28/2005 2:01:15 PM EDT
Link Posted: 12/30/2005 6:27:23 PM EDT
Like to hear how they are after several thousand rounds.
Link Posted: 1/4/2006 3:11:24 PM EDT
try a cav arms lower they are durable and lighter
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