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I wonder if that's a cast gas block? I imagine a poorly cast gas block could fail in such a manner...
Not really. This is also the reason aluminum gas blocks etc are retardo.
Look at piston blocks that have the ability to turn the gun into a single shot rifle. You don't see those blowing up. Using crap parts, possibly even casted, ='s crap results. I honestly don't see my v7 or vltor blocks blowing up anytime soon regardless of if they had the hole completely blocked.
Going off the picture he posted, that is some pretty grainy metal. Looks almost like cast iron does with the huge grains CI has. I'm really wondering if this wasn't some cast part, or something like pot metal. Tin wouldn't necessarily have the huge grainy ordeal but casting it with stainless or steel could. Would be interesting to drop it off at a local college and have them take a look under a scope at it. (not worth the time, more of a curious ordeal).
Last edited by discreet; 03-23-14 at 17:30.
From TOS ... "buy the shit out of that thing, all the mil spec is just nonsense."
I just purchased and installed a BCM low profile block on my BCM LW middy. Fired about 250 round of 223 and 556 through it Friday and today; there were no issues....
I'd get my money back and get a better complete upper.
.
-David
AR-15 owner/shooter since 1998
What does that have to do with the OP's issue? We all know good companies gb's are fine, so not sure how that relates to his issue, as well as you saying you ran some rounds through yours without issues.
Also 250 rounds is a couple minutes at a range, and nothing that even remotely guages reliability.
From TOS ... "buy the shit out of that thing, all the mil spec is just nonsense."
This is a good point. The seller must be given a chance to correct the problem before we start the dog-pile. Let's take this as a reminder and move on in a professional manner. I'm sure jbates will contact the seller and let them know about the flaw and get back to us with their reply, or simply fix it on his own
INSIDE PLAN OF BOX
- ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
- MATCH SCRATCHES ON MATCH-BOX
- MATCH LIGHTS FUSE TO TNT
- BOOM!
- HA-HA!!
-WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"
I am American
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