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Old 05-09-2017, 02:51 PM
GameChanger GameChanger is offline
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Gas block ? Gas block ? Gas block ? Gas block ? Gas block ?  
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Question Gas block ?

Well, I'm proudly a member of the S&W gun family now.
Very happy to find this forum, I have a MP sport 2 optics ready.
I want to replace the foregrip with mod rail..
This one...
Diamondhead VRS T-556-KeyMod AR-15 Handguard 13.5" - 2235 - 857880003788

Will I have to replace the gas block ?
Who sells the best ones?
Is this a project for a gun smith..
I'm mechanically inclined, but have not done a lot with rifle modification, just shot a lot..

Thank you in advance

GC

Last edited by GameChanger; 05-09-2017 at 03:18 PM.
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Old 05-09-2017, 03:00 PM
cyphertext cyphertext is offline
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Yes, you will have to replace the gas block. Based on your questions, I would recommend a gun smith.
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Old 05-09-2017, 03:02 PM
TX-Dennis TX-Dennis is online now
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By the way, that hand guard is designed for a .308 upper. It is unlikely to fit a 5.56/.223.

Last edited by TX-Dennis; 05-09-2017 at 03:03 PM.
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Old 05-09-2017, 03:05 PM
GameChanger GameChanger is offline
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They make one for 5.56 I posted the wrong link.. The correct link also has the same verbiage...

Diamondhead VRS T-556-KeyMod AR-15 Handguard 13.5" - 2235 - 857880003788

Last edited by GameChanger; 05-09-2017 at 03:16 PM.
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Old 05-09-2017, 09:00 PM
WR Moore WR Moore is offline
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Make sure your new gas block is pinned. I've seen several blow forward that were "attached" with set screws. It's always very interesting if it's not yours.
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Old 05-09-2017, 09:33 PM
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If the set screws are torqued properly the gas block won't move. Add some red Loctite and they'll never move. I've done three myself and helped with several more. None have moved in thousands of rounds.

Even so, pinned is better.

Yes, you can do this yourself. Look on the Brownell's website for videos on gas block replacement. It's a lot easier than it looks.

No need to spend big bucks on a low profile gas block. There's no real precision there other than the barrel diameter. Any $30 gas block will perform fine.
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Old 05-09-2017, 10:04 PM
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What AR manufactures pin their low profile gas blocks under a free float handguard?
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Old 05-10-2017, 08:03 AM
cyphertext cyphertext is offline
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Quote:
Originally Posted by ChattanoogaPhil View Post
What AR manufactures pin their low profile gas blocks under a free float handguard?
I know one that doesn't for sure... and I was quite surprised!
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