After about 1600 rounds my Preban's 16" gas tube has taken a nice blue color along the length of it.

I'll update with pics tonight when Dad comes home from work with the USB cable for the digital.

I was just wondering what unique hues everyone else's gas tubes have taken

Number of rounds: Hell, I don't know anymore!

Color: Reddish brown

I once saw a gas tube on a Commando turn every color in the rainbow.  Of course the front sight got so hot the pins worked out.  Umm...we might have put too many rounds through it too quickly [:D]

Anyone save the photo that was on the AR15.com homepage of a melted tube from Model-1 sales?  This was around 1996ish..

[img]http://www.hunt101.com/img/055491-big.jpg[/img]

[8D]

COOL!

Now that's Punk Rock! Your the man!....

Did the same thing as [b]SinistralRifleman[/b] with two consecutive Beta mags firing 100 round bursts with an SGW M16 and Bushmaster 14.5-inch A2. The gas tube never touched the handguard though, just melted down alongside the barrel. Ken from SAW has it now for an instructional visual.

Sustained rate of fire, what’s that?

Best regards, J

I don't have any pictures of the gas tube I ruined but it was a mess when it was all done. While in Basic Training in the Army I was the Platoon RTO. On our final bivouac it rained and rained. All the guys where in there fox holes while I was in the DI's tent warm and dry. At the end of the bivouac they had to get rid of all of the left over blanks, about 6000 rounds worth. My M16A1 was the only one that wasn't plugged up with mud and crap so it got the responsibility to fire off all that brass. The gas tube was bright red and warped along with the barrel. It was awesome to fire all those blanks on full auto. Needless to say I never had to clean that weapon, just turned it into the Armor and walked away. [8D]