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Posted: 2/13/2006 5:13:51 AM EDT
I plan on making a integral 9mm upper for my AR-15. My suppressor is a 1-1/2" suppressor which is about 1/4 inch larger than most 9mm suppressors.
What is the inner daimeter of a KAC rail system?
Are there any other rail systems that can accomidate a 1.5" can?
Thanks Mike K
Link Posted: 2/13/2006 6:16:00 AM EDT
Did you try calling the companies directly? I'm pretty sure the YHM handguards will fit, but give them a call.
Link Posted: 2/13/2006 6:49:50 AM EDT

Originally Posted By Medic17:
I plan on making a integral 9mm upper for my AR-15. My suppressor is a 1-1/2" suppressor which is about 1/4 inch larger than most 9mm suppressors.
What is the inner daimeter of a KAC rail system?
Are there any other rail systems that can accomidate a 1.5" can?
Thanks Mike K



Sounds like you need a "tube" forend. The odd "+" shape of the DD and Larue makes it a little internally restrictive.

PRi comes to mind, and would be my first choice in your situation. PRi tubes have a 2" OD, and they're what MSTN used when he did a run with integral suppressors.
Link Posted: 2/13/2006 8:25:25 AM EDT
What suppressor is it?

My CAC 9 doesn't fit under most handguards, actually it hasn't fit under any I've tried yet.
Link Posted: 2/13/2006 11:59:22 AM EDT
Link Posted: 2/14/2006 12:10:59 PM EDT
A 1.5 can will fit inside a YHM 4 rail FF tube

hope it helps


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