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1/4/2008 10:00:03 AM EDT
Newb here.  Can someone explain why particular tactical forearms need to have the delta ring cut off for installation?  Thanks!
1/4/2008 11:05:04 AM EDT
[#1]
Because the rails attach to the barrel nut in that spot or replace the factory barrel nut entirely.  If you are discussing a particular rail I can tell you what is removed and why.
1/5/2008 9:37:49 AM EDT
[#2]
Thanks for the reply. I'm interested in a carbine length free-float one from MI.  Not my field of expertise however.  So I could use advice!
1/5/2008 10:11:55 AM EDT
[#3]

Quoted:
Thanks for the reply. I'm interested in a carbine length free-float one from MI.  Not my field of expertise however.  So I could use advice!


It is generally easier to cut the delta ring off, ruining it.  If you want to save it, you have to remove the FSB (front sight base) to get the delta ring off the barrel.  
1/5/2008 1:53:23 PM EDT
[#4]

Quoted:
Thanks for the reply. I'm interested in a carbine length free-float one from MI.  Not my field of expertise however.  So I could use advice!





Remove the handguards that are on your rifle by pushing down on the Delta ring and pulling the guards away from the bbl.  It helps if you have someone to help.........sometimes the Delta ring is very hard to push down.  Then take a Dremel tool with a reinforced cutting disc and carefully cut through the ring.  I cut through on both sides.  The MI rails are very easy to install.  Takes longer to explain how than it does to complete the job.  Maybe 20min.
1/5/2008 2:16:07 PM EDT
[#5]
Thanks everyone, now I get it.  I am planning on getting an Armalite M-15 A4 carbine.  Even the model with the gas block front sight base looks like the ring won't slip off.
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