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Check out the Ultradyne Quantum AGB:Hey Everyone,
I am installing a CF barrel on my Noveske N4 and am concerned about gas block to handguard clearance.
What can you all recommend for the slimmest .875 gas block?
Thank you.
Stephen
Thanks for the suggestion but pinning a gas block is not going to play on my CF barrel.Superlative arms pinned model is one of the smallest. Generally a pinned ( superior to clamps in everyway, I will die on this hill) is going to be lower profile than clamped.
Why not?Thanks for the suggestion but pinning a gas block is not going to play on my CF barrel.
Why not? All of the CF barrels I have seen on ARs have a full round Steel Section that supports the gas block.Thanks for the suggestion but pinning a gas block is not going to play on my CF barrel.
Been looking at the Troy Micro. Any thoughts on that one?
The barrel is dimpled for a setscrew gas block. The question was about drilling for a pinned gas block.Its extremely easy. If its a proof prefit barrel then it already has the first dimple.
Install gas block, install first set screw.
Then take a drill bit slightly smaller than the ID of the set screw hold and just dimple the barrel. You are just creating a crater for the set screw to seat so the block cant rotate. Then loctite the screws and torque down.
Install the gas tube and slide into upper.
I was referring to the method where you install a pin that penetrates both the barrel and the gas block. Hence "Pinned".Set screw is "pin". There are also pinned gas blocks (where you drill a hole and put a long pin in ) but that's overkill.
This is what you want, in whatever color/coating you want:
Makes sense.Yea pinned is pretty much obsolete at this point. Its only done on hard use military rifles like the M4/M16 and really is not needed on a precision rifle. Set screw loctighted is not going to move or turn like a clamped will. It also makes it almost impossible to install the block incorrectly, as the gas port will be lined up with the block hole, unless your barrel is drilled incorrectly.
Does your barrel have one or two dimples? If it has two, what's the center to center distance?The barrel is dimpled for a setscrew gas block. The question was about drilling for a pinned gas block.
If I opt to go with the setscrew attachment, I can do that myself. Probably use Rocksett instead of Loctite though.
Thanks
It only has one. it appears to be directly opposite from the gas port. I can mount the gas block using one screw in the dimple and use the second hole as a guide to drill a second dimple.Does your barrel have one or two dimples? If it has two, what's the center to center distance?
That’s the point. It provides you a reference point to center the block and then you can align whatever block you choose. Some even come with the pinned slot to facilitate doing that if you wish.It only has one. it appears to be directly opposite from the gas port. I can mount the gas block using one screw in the dimple and use the second hole as a guide to drill a second dimple.