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Old 02-27-2013, 06:57 PM   #1
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Default Dissipator

I currently have a carbine length AR-15. I have a free float quad rail and a low pro gas block. I want to turn my upper into a dissipator upper. I'm thinking I will need a barrel nut, delta ring assembly, a handguard cap, and a front sight assembly. Oh and rifle length handguards. What am I missing?


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Old 02-27-2013, 07:02 PM   #2
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BCM has all of those parts except handguard cap. I'm wanting to put black rifle length MOE handguards. Would I need round or triangle cap?
BCM has two front sight assemblies.

http://www.bravocompanyusa.com/mobile/default.aspx#P1850

http://www.bravocompanyusa.com/mobile/default.aspx#P1849

I would need the taper pin set too? I want to make sure I get all the parts I need. Those sights are to different sizes. What are the differences?


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Old 02-27-2013, 07:31 PM   #3
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Your barrel has to be cut with the proper reliefs for a fixed fsb. Not all are.
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Old 02-28-2013, 12:07 AM   #4
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So you're saying it would be a pita?
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Old 02-28-2013, 12:16 AM   #5
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no. you just need to contact the barrel maker/supplier to see if your barrel has been profiled to mount a fixed fsb if you plann on using one.
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Old 02-28-2013, 12:49 AM   #6
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For a true dissipator dont you have to move the gas hole on the barrel as well?
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Old 02-28-2013, 02:58 AM   #7
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You could get a clamp on front sight, like a folding one from PRI or YHM.
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Old 02-28-2013, 03:05 AM   #8
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Quote:
Originally Posted by bluez View Post
For a true dissipator dont you have to move the gas hole on the barrel as well?
That kinda depends....
You could build a dissapator with either a carbine or a mid-length gas system, which remains intact (in the same place) while a front sight base is affixed in front of it. The forward FSB isn't connected to the gas system, of course.
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Old 02-28-2013, 04:31 PM   #9
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Yes a true dissy will have a rifle gas system. A mock dissy will have to have 2 gas blocks if you want a fixed FSB up front.
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Old 02-28-2013, 04:59 PM   #10
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Easier than a thousand words, right?


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