Messages
1,207
Reactions
820
I take a little bit of issue with the way it says that gas pushes the bolt back. It isn't the result of gas hitting the carrier key, but expanding behind the bolt inside the carrier. This is somewhat revolutionary because it pushes the bolt slightly forward, taking some strain off the locking lugs to make them turn more easily. And it's the reason the rifle won't cycle correctly if the gas rings are missing or have their gaps lined up.
 
Messages
1,723
Reactions
3,955
I take a little bit of issue with the way it says that gas pushes the bolt back. It isn't the result of gas hitting the carrier key, but expanding behind the bolt inside the carrier. This is somewhat revolutionary because it pushes the bolt slightly forward, taking some strain off the locking lugs to make them turn more easily. And it's the reason the rifle won't cycle correctly if the gas rings are missing or have their gaps lined up.
Gas rings don’t need to be staggered.
 
Messages
15,860
Reactions
38,658
I take a little bit of issue with the way it says that gas pushes the bolt back. It isn't the result of gas hitting the carrier key, but expanding behind the bolt inside the carrier. This is somewhat revolutionary because it pushes the bolt slightly forward, taking some strain off the locking lugs to make them turn more easily. And it's the reason the rifle won't cycle correctly if the gas rings are missing or have their gaps lined up.
He says about the gas "...through the gas tube and into the bolt carrier key forcing it to the rear." While a little short on description it technically isn't wrong and the graphic clearly shows the gas leaving the key and filling the cylinder portion of the bolt carrier. But yeah I agree, he should have gone into the piston/cylinder relation of the bolt and bolt carrier and it's design departure from a conventional direct impingement system.

Also, FYI, the staggering of gas rings is a myth, yes it is in the military manual and taught that way but it is still BS. A properly functioning AR will actually operate on a single gas ring and with a suppressor or other high pressure gun will run without any rings installed.

 
Last Edited:
Messages
3,964
Reactions
9,937
Hard to fathom how some gun myths, such as staggering the gas rings, persist and persist and persist.
Not when you consider the source. The vast majority of people brought to the platform were instructed the same way. Until a higher source can dispute it, that persist as fact.
 
Messages
17,347
Reactions
36,449
aren't gas rings much like piston rings? you get a better seal if they are staggered.
I was taught to stagger ring gaps when I learned to rebuild gasoline piston driven engines. So I do when I'm cleaning the AR. When I get to the point that I don't have the 10 seconds to spare I'll skip the process.
 

Upcoming Events

2A Rally at the Capitol
Salem, OR
Wes Knodel Gun Shows
Chehalis, WA
Wes Knodel Gun Shows
Redmond, OR

Latest Resource Reviews

New Classified Ads

Back Top