School of the American Rifle

[DG23]

I do remember him explaining the acceptable level of protrusion in a video from a while back. I don’t remember what it was off the top of my head however.

I would imagine a lot of guys here have feeler gauges around and have gapped a spark plug or two in their lifetime.



You can show a guy your multi hundred dollar tool for measuring FP protrusion from the front of the bolt or...

Explain to him how he likely already has all the stuff he needs to measure the same thing from the back.



That is the gap you measure while holding something flat against the face of the bolt and pushing the FP forward until it stops against it.

Not hard to do and does not require a $500.00 specialty tool to measure.

[T2C]

I would imagine a lot of guys here have feeler gauges around and have gapped a spark plug or two in their lifetime.



You can show a guy your multi hundred dollar tool for measuring FP protrusion from the front of the bolt or...

Explain to him how he likely already has all the stuff he needs to measure the same thing from the back.



That is the gap you measure while holding something flat against the face of the bolt and pushing the FP forward until it stops against it.

Not hard to do and does not require a $500.00 specialty tool to measure.

That's a good way to check firing pin protrusion on an AR if you don't have a depth micrometer or a firing pin protrusion gauge.

If you don't work on other firearms, M1 Garands, 1911's, etc., a set of feeler gauges is all a person needs.

[HKGuns]

I would imagine a lot of guys here have feeler gauges around and have gapped a spark plug or two in their lifetime.



You can show a guy your multi hundred dollar tool for measuring FP protrusion from the front of the bolt or...

Explain to him how he likely already has all the stuff he needs to measure the same thing from the back.



That is the gap you measure while holding something flat against the face of the bolt and pushing the FP forward until it stops against it.

Not hard to do and does not require a $500.00 specialty tool to measure.

This is great, assume the 28 - 36 numbers are the same from the back?

He does show you how to use 2 quarters for BCG clearance in the tube. Do you have any solution other than tossing a quarter into the tube?

I like that he is using Ned's carrier key screw and point out those companies using those great screws. (Sionics)

[DG23]

numbers are the same from the back?

When the FP collar / shoulder contacts the bolt tail that is all the protrusion you will get out the front. The FP can't go forward any more once it stops there unless...

You spend a few seconds taking some material off the face of that FP collar so it WILL give you more protrusion.

Again, I bet you have all the tools you 'need' to adjust this sort of thing yourself laying around in your shop.





Takes less time to correct than it does to bitch about it.

If a guy really wanted to help YOU and not his own wallet why would he not explain all that???

[HKGuns]

When the FP collar / shoulder contacts the bolt tail that is all the protrusion you will get out the front. The FP can't go forward any more once it stops there unless...

You spend a few seconds taking some material off the face of that FP collar so it WILL give you more protrusion.

Again, I bet you have all the tools you 'need' to adjust this sort of thing yourself laying around in your shop.





Takes less time to correct than it does to bitch about it.

If a guy really wanted to help YOU and not his own wallet why would he not explain all that???

He might tell you that in one of his classes, or he might say spend $12 on a new firing pin. He is promoting his classes and I don't begrudge him making money to feed his family.

He certainly isn't making any money being a gun oriented channel on youtube.

[the AR-15 Junkie]

[DG23]

Screams 'Please buy me cause you need this stuff'...

Or not.

[1168]

Brownells sells an inexpensive firing pin protrusion gauge. I’m a little surprised at all the bitching about him describing why a particular dimension is important. Its literally a video about dimensions, not repair. You didn’t pay for his youtube video, so just turn it off if you don’t want to learn about that, and make your own contributions to the community. Oh, wait, how many of us are qualified to contribute anything?

[DG23]

and make your own contributions to the community. Oh, wait, how many of us are qualified to contribute anything?

Are you saying / suggesting a guy has to be 'qualified' to post here?

[HKGuns]

Screams 'Please buy me cause you need this stuff'...

Or not.

I don't see him selling these anywhere, maybe I missed them.

Even I, not a gunsmith, realize these are all basically pin gauges on a fancy board. The dimensions are clearly labeled in your picture, so it isn't like it is hard to duplicate or he is hiding information on purpose.

If you watch his videos, he tells you the dimensions as he's presenting the information. He isn't always consistent about what he says, but for pity sake. He's doing these without a lot of editing and his wife is holding the flipping camera.

Did he mess up one of your guns or are you just living in bonerville? Hard to imagine someone caring so much about something like this............