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  #1  
Old 07-15-2018, 1:03 PM
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Default Installing a Noveske lo-pro gas block - cool to use a spring pin?

I just received my 300BLK barrel, Noveske would not sell me a naked barrel so I had to settle for a barrel that has already been mated to one of their gas blocks.

If you aren't familiar with how they do this, they use a single pin (not tapered) and also have a set screw on the bottom of the gas block.

Problem is, the pin they give you is 0.125" and the hole in the gas block seems to be smaller.

After watching several videos of people absolutely beating the crap out of their barrels, I'm not about to break out a small sledge and go to town.

So, can I get away with using a spring pin instead? Seems like the set screw and spring pin should be good enough especially since my handguard will totally shroud the gas block.

Also should I use Rocksett or red Loctite on the set screw? I have both.
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Old 07-15-2018, 3:04 PM
kcstott kcstott is offline
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web site says it a tapper pin.

No experience with Noveske other that what customers have brought by.

And no I would not use a roll pin. I'd match ream the hole and barrel to fit a taper pin i have in my kit.
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Old 07-15-2018, 4:21 PM
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Website must be inaccurate, the supplied pin measures the same on both ends.

There are several threads on various forums complaining about these straight pins, one guy posted pics and it looked like he threw his gas block in a garbage disposal by the time he was done.

I’m not letting that happen to me lol
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Old 07-15-2018, 4:43 PM
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Yikes:

CB5A79BB-8D8E-4336-8FFB-50F3D88CF1F3.jpg
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Old 07-15-2018, 5:02 PM
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Apparently their older barrels came with tapered pins - mine definitely did not.

I have an arbor press but don’t have a fixture for this gas block to sit in.
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Old 07-15-2018, 6:04 PM
kcstott kcstott is offline
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Well McMaster has taper pins, reamers, hammers, punches, everything you might need. Well almost everything.
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Old 07-15-2018, 9:50 PM
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Quote:
Originally Posted by m16 View Post
I just received my 300BLK barrel, Noveske would not sell me a naked barrel so I had to settle for a barrel that has already been mated to one of their gas blocks.

If you aren't familiar with how they do this, they use a single pin (not tapered) and also have a set screw on the bottom of the gas block.

Problem is, the pin they give you is 0.125" and the hole in the gas block seems to be smaller.

So, can I get away with using a spring pin instead?
A spring pin will be fine.
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Old 07-15-2018, 10:01 PM
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Geissele uses a 3/16" coiled spring pin for their super gas blocks.
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Old 07-16-2018, 10:19 AM
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I ended up ordering some of these:

https://www.mcmaster.com/#95765a334/=1dqoe9i

If anyone needs a few let me know, I seriously doubt I'll even use a half dozen.
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Old 07-19-2018, 5:37 PM
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Did you call them and talk to their customer service?
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Old 07-20-2018, 10:24 AM
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Yeah, but not about the gas block.

I called them because the pistol gas tube they sent me was drilled wrong and when you tap in the gas tube roll pin the gas tube ends up sticking out of the gas block all crooked to the side.

Still haven’t heard back, I’m pretty pissed cause I doubt I’ll be able to find a pistol length gas tube without driving to Phoenix, which I am not doing lol

Had plans to shoot it tomorrow with some supersonics but I guess that’s out the window.
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Old 07-20-2018, 6:24 PM
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Quote:
Originally Posted by m16 View Post
the pistol gas tube they sent me was drilled wrong and when you tap in the gas tube roll pin the gas tube ends up sticking out of the gas block all crooked to the side.
That commonly occurs because the gas block is mis-drilled.
I see the gas block as the problem far more often than the gas tube.

Look closely at the gas tube and you can see if both sides of the gas tube have equal material above/below the gas tube pin hole or if one side is obviously thinner than the other.
I have seen a couple gas tubes that were wrong, but the vast majority are gas block problems.

I fix either problem by simply re-drilling the gas tube pin hole through both the gas tube and gas block as an assembly.
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  #13  
Old 07-20-2018, 7:01 PM
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Randall, I got it in by tweaking it so it would slide through the barrel nut teeth and the hole in the upper.

It would not engage the gas key smoothly though so I gave the gas tube another little tweak inside the receiver, now the bolt carrier slides all the way in like butter.

Do you think this caused any alignment issues between the gas block and gas tube ports?

If this thing short strokes I’m going to be really unhappy.
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  #14  
Old 07-21-2018, 1:35 PM
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Here’s a pic of the coil pin installed, it took a good amount of force to get it in and I used Rocksett on the set screw so I doubt this gas block is going anywhere:

DD8C1350-00C5-4EF0-9699-FCAE33580DAF.jpg

She is coming along nicely, I’ll probably shoot it once without the suppressor and then put it away until my tax stamp arrives haha

E81FF79F-2900-4EC3-AA58-5E0AFE3F4D4A.jpg
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