Gas tube hitting top of JP Handguard

ToddM

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Jul 1, 2008
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So I've been building up a Mega/JP 6.5. JP MK III handguard and SLR gas block, +2 gas.

The issue I've ran into is that the gas tube hits the top of the handguard at the point where it just starts to kink down. It has clearance where it first comes out of the receiver. It's not really hitting hard but it's definitely making contact. I did try another gas tube thinking one might be bent and the were both the same (different brands). Figure shows where it's hitting.

gasTube.jpg


First is this an issue? I know I've always heard if the gas block itself hits it causes an issue, wasn't sure about the gas tube this close the receiver but seems like it's not ideal. It looks like the barrel is centered in the handguard (handguard is just short of the gas block so no worries there, and I don't think I could adjust it up much if any that close to the receiver. Second if it is an issue, what's the fix, if two different gas tubes were both hitting I doubt ordering another one is going to be the fix. Seems like the only other option is to bend it but that seems risky to either kink/weaken the tube or impact the gas key alignment since it seems perfect right now.



Thanks

Todd
 
I had a similar problem, and JP said if it is lightly touching, it’s not a big deal, but if it’s hitting hard, it could be a problem. Loading for it tomorrow and shooting it on Sunday, so maybe I can report back.
 
SLR gas blocks can be really tall. I used a straight gas tube with a sentry 9 block. Way better than a standard bent tube for that application...
 
Correct I just used a stock picture to show the point where it's hitting the handguard, it's hard enough to see/feel the JP handguard/tube interface, I'd never get a picture of it that was helpful. I've never seen a strait +2 length tube, perhaps i'll try one of those or bending it as I have a couple spares. Sad part is by getting a JP handguard in a length short of my gas block I thought I was being proactive to avoid these issues. On the plus side after some gentle tough love it's clearing now.
 
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