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Old October 11th, 2017, 10:24 AM   #11
clandestine
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Couldn't these be made as rings to be dropped down over the assembled bolt? (or a C-clip shape) Just point the muzzle up to use on an assembled bolt. Would take no modification to the firearm to test.
A standard ring with an opening large enough to clear the bolt Lug's would have too much play to be accurate in my opinion.


Now if you were to make a coin style gauge that had the bolt lug Cuts made into it, that would work.
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Old October 11th, 2017, 10:32 AM   #12
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Couldn't these be made as rings to be dropped down over the assembled bolt? (or a C-clip shape) Just point the muzzle up to use on an assembled bolt. Would take no modification to the firearm to test.
I don't know where chad came up with this design but it 1000 times more user friendly then the armys feeler gauge method or trying to us a 50cal head space gauge.
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Old October 11th, 2017, 10:37 AM   #13
clandestine
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I don't know where chad came up with this design but it 1000 times more user friendly then the armys feeler gauge method or trying to us a 50cal head space gauge.
It's something I thought up helping a friend get his M16 in time. You are 100% correct, using a feeler gauge or a pin gauge is a pain in the rear.

This set is actually going in my son's M4 Armorers Kit and it may deploy with him.

I will be making a second set to keep for myself.

I do prefer this design over one that retains the bolt head in place because it ensures that the weapon cannot be fired when you are messing with the gauge.
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Old October 11th, 2017, 11:03 AM   #14
d33rhunt3r
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Can you explain how this is used/works? I'm not familiar with it.
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Old October 11th, 2017, 11:25 AM   #15
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Can you explain how this is used/works? I'm not familiar with it.

https://www.scribd.com/mobile/document/16363465/Timing-an-M16#
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Old October 11th, 2017, 05:06 PM   #16
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Originally Posted by clandestine View Post
A standard ring with an opening large enough to clear the bolt Lug's would have too much play to be accurate in my opinion.
Doesn't need to clear the lugs. Only the bolt neck if C shaped. Fancy version could even use a detent spring to hold it on.


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Old October 11th, 2017, 06:16 PM   #17
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Doesn't need to clear the lugs. Only the bolt neck if C shaped. Fancy version could even use a detent spring to hold it on.
Why over complicated a design that he freely shared with everyone. Try using a feeler gauge!!
His simple designs would take 2 minutes to check timing..
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Old October 12th, 2017, 07:37 AM   #18
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His simple designs would take 2 minutes to check timing..
The simpler design would take 10s to check timing. How is a flat disc w/ a slot cut in it more complicated?


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Old October 12th, 2017, 09:37 AM   #19
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The simpler design would take 10s to check timing. How is a flat disc w/ a slot cut in it more complicated?
Do you have a working prototype? To compare
It to.
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