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odugrad
08-11-18, 08:02
I just got a P&S ras and was trying to install it in my rifle. For the life of me I cannot the rail under the delta ring. And there are gouged in the rail where the barrel nut appears to be preventing the rail from seating. Any ideas?533365333753338
odugrad
08-11-18, 08:06
I've already insured the screw is removed and the gas tube rails sit on either side if the gas tube. And it applies to the bottom half of the rail as well as the top.
Iraqgunz
08-11-18, 20:43
I have seen this happen with barrel nuts that weren't timed properly. What upper are you putting this on?
odugrad
08-12-18, 07:31
A BCM. I figured it would be good to go.
odugrad
08-15-18, 06:33
Anyone have any ideas on how to fix this?
26 Inf
08-15-18, 22:08
Anyone have any ideas on how to fix this?

Nope, have you seen these:

http://looserounds.com/2014/05/23/how-to-install-a-kac-m4-or-m5-ras/

http://www.quarterbore.com/library/pdf_files/kac_ras_inst.pdf

Do you have a hand guard removal tool: https://www.brownells.com/gunsmith-tools-supplies/rifle-tools/handguard-tools/ar-15-m16-308-ar-handguard-removal-tool-prod24202.aspx

I'm simply asking if you are sure you are getting the Delta Ring as far back as it needs to be.

Good luck.
titsonritz
08-16-18, 01:54
A BCM. I figured it would be good to go.


Autistic screeching ensues.

It couldn't be the rail.
Iraqgunz
08-16-18, 03:46
"Anything made by made is subject to failure". Wilius Gunnus Smithus 59 A.D. Not saying that it is the upper/barrel nut. But, I have seen some instances of it happening.

Have you considered having someone else look at it to rule out operator headspace?


A BCM. I figured it would be good to go.