Time to change my gas rings?

[curious1]

Here's a link to a Colt Canada manual. A gas ring test method is shown on page 4-3
http://coltcanada.com/assets/10044s-2005-09-20.pdf
If you just look at the picture without reading the text to the test you might think you set it down on the bolt but that is not how their test is done.

[AndyLate]

Here's a link to a Colt Canada manual. A gas ring test method is shown on page 4-3
http://coltcanada.com/assets/10044s-2005-09-20.pdf
If you just look at the picture without reading the text to the test you might think you set it down on the bolt but that is not how their test is done.

Thank you for the link!

Andy

[Iraqgunz]

A. That manual is over 12 years old.

B. The test of standing the bolt on it's face is TAUGHT by Colt Defense USA

C. Military personnel who have attended my course have told me that they are learning this.

D. I have been to the Colt Armorer Course 5 times over 15 years and that method was taught in every class.

E. It's entirely possible I am just talking out of my ass.

Here's a link to a Colt Canada manual. A gas ring test method is shown on page 4-3
http://coltcanada.com/assets/10044s-2005-09-20.pdf
If you just look at the picture without reading the text to the test you might think you set it down on the bolt but that is not how their test is done.

[26 Inf]

Between the two methods - 1) cam pin removed - holding BCG with bolt down and checking to see if it falls out; and 2) sitting the BCG on the bolt fact with the bolt extended then seeing if it collapses - it seems to me that the method allowing the bolt to fall out of the carrier would allow the rings to become more worn before they failed the test because the bolt is lighter than the bolt carrier.

My thought is that the other method (the way Colt USA teaches) would catch the rings earlier and therefore allow replacement before you had cycling issues.

I would think erring on the side of caution and using the Colt USA method would be the way to go.

Make sense?

[grizzman]

I have an old POS DPMS upper I bought fairly early in the AWB era that still has the original rings. It completely fails the standing test (even with a semi carrier), but passes the hanging test with ease. I haven't shot it in quite a few years, but it was always completely reliable.

I agree that the standing method is likely a more stringent test, likely to catch ring wear before the hanging test.

[curious1]

There are so many different styles and weight carriers I am not sure using the standing method would even give the same results between different carriers with every possible level of wear on the rings.

[Sancho Panza]

Could just splurge, & spend the $3 to replace them; if in doubt.

[AndyLate]

Could just splurge, & spend the $3 to replace them; if in doubt.

You read my mind.

Andy

[Jmedic_]

Could just splurge, & spend the $3 to replace them; if in doubt.

You’re comment made me chuckle. But, I agree. Go ahead OP, treat yo self, you’ve earned it. Hell, get really crazy and order them in a three pack from Sprinco, like I do.

[26 Inf]

I use the McFarland 1 piecer's at $3.99 each. That way when I'm operating operationally I don't have to worry about the three rings aligning and causing malfunctions or increasing blowback enough to knock my eyepro off when I need to take a critical followup shot.



I actually do use the McFarland's as replacements. I bought three early on, just because, and still have two left. Having a bunch of AR's helps spread the wear out.