Slip ring/Delta ring question > AR-15 / M-16 Retro Forum

Posted: 11/20/2007 4:00:03 PM EDT

When were Slip rings replaced by Delta rings? According to retroblackrifle.com they were "not found on any retro rifle" so I assume they came into existence when the M16A2 was designed in 1983. If so, no correct M16a1 should have a Delta ring. Right?

Also, can you simply replace a Delta ring with a Slip ring without needing to replace anything else?

Posted: 11/20/2007 4:42:45 PM EDT

[#1]

Per Ekie's guides, the delta ring was used on early carbines (67-70), but no, they were not used on the 603/M16A1. Yes, you can simply replace the Delta with a slip. You have to remove the barrel, of course.

Posted: 11/21/2007 10:57:51 AM EDT

[#2]

Right.

The delta ring was introduced on the XM177E1 carbine and then came back into use with the M16A2.

Posted: 11/21/2007 12:40:32 PM EDT

[#3]

Quoted:
...the delta ring...You have to remove the barrel, of course.

...Ummm...Doesn't the FSB have to come off as well???...

Posted: 11/21/2007 12:44:44 PM EDT

[#4]

Quoted:
...Ummm...Doesn't the FSB have to come off as well???...

.....Ummmm......no.

Remove the snap ring and it comes right off.

Posted: 11/21/2007 1:01:39 PM EDT

[#5]

And why is it called a Delta ring?

Posted: 11/21/2007 1:11:23 PM EDT

[#6]

Quoted:
And why is it called a Delta ring?

Due to its triangular profile. ???

Posted: 11/21/2007 1:15:44 PM EDT

[#7]

The flat one is callled a "slip-ring" because it slips back and forth to retain the handguards.

The one with the tapered grasping surface is called a "delta ring" because if you were to follow the taper out you would have a triangle. "Delta" is a Greek letter represented by a triangle.

Posted: 11/21/2007 2:26:47 PM EDT

[#8]

Quoted:

The one with the tapered grasping surface is called a "delta ring" because if you were to follow the taper out you would have a triangle. "Delta" is a Greek letter represented by a triangle.

You must be one of those intillectuals

Posted: 11/21/2007 2:41:50 PM EDT

[#9]

Quoted:
You must be one of those intillectuals

No, he's just seen Animal House a time or two.

Posted: 11/21/2007 2:46:32 PM EDT

[#10]

Quoted:

Quoted:
You must be one of those intillectuals

No, he's just seen Animal House a time or two many times.

Posted: 11/22/2007 5:21:06 AM EDT

[#11]

The shape is actually an isosceles trapezoid but Delta sounds so cool!!

Posted: 11/22/2007 5:31:39 AM EDT

[#12]

Looks like we found Dan Akroyd.

Posted: 11/22/2007 6:45:05 AM EDT

[#13]

Quoted:

Quoted:
...Ummm...Doesn't the FSB have to come off as well???...

.....Ummmm......no.

Remove the snap ring and it comes right off.

Ah...So you remove the gas tube from the FSB before removing the barrel???...I've always just punched the FSB pins out and slid the sight/gas tube off rather than unpinning the gas tube...IIRC, I think I did try unpinning the gas tube once, but had difficulty pulling it out of the rear retainer/spring/delta ring...

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[ARCHIVED THREAD] - Slip ring/Delta ring question

[ARCHIVED THREAD] - Slip ring/Delta ring question