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klw
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Posted: 12/6/2011 8:48:05 AM EST
Bushmaster lists a model called the Dissipator. What is a dissipator and how would it differ from their midlength 223?

http://www.bushmaster.com/catalog_xm15_BCWA3F16DMOE.asp
http://www.bushmaster.com/catalog_xm15_BCWA3F16M4MLMOE.asp
Gregory_K
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Posted: 12/6/2011 9:01:55 AM EST
[Last Edit: 12/6/2011 9:02:35 AM EST by Gregory_K]
carbine gas tube rifle length sights and handguard, 16" barrel. Bushmasters version of a dissy other manufs may be different in gas tube selection.
jeepinbanditrider
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Posted: 12/6/2011 9:05:37 AM EST
[Last Edit: 12/6/2011 9:06:27 AM EST by jeepinbanditrider]
Used to a Dissapator was a 16 inch barreled rifle with a rifle length gas system which also gave you a rifle sight radius with a 16 inch barrel.

Nowadays they use a mid-length or carbine gas system (via a low profile gas block) with a dummy front sight base for a rifle length sight radius and better reliablity with mid length gas system.

They're pretty neat setups especially if you want to be able to reach out there and grab a lot of the rifle or need a bunch of rail space for "stuff". I might build my next upper as a dissapator type.
Gregory_K
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Posted: 12/6/2011 9:21:26 AM EST
Originally Posted By jeepinbanditrider:
Used to a Dissapator was a 16 inch barreled rifle with a rifle length gas system which also gave you a rifle sight radius with a 16 inch barrel.

Nowadays they use a mid-length or carbine gas system (via a low profile gas block) with a dummy front sight base for a rifle length sight radius and better reliablity with mid length gas system.

They're pretty neat setups especially if you want to be able to reach out there and grab a lot of the rifle or need a bunch of rail space for "stuff". I might build my next upper as a dissapator type.


Think Bushmaster still uses the carbine gas system on Bushmaster Dissy builds.

OP of the 2 you have linked. it is the handguard size and sight radius are both longer on the dissy.
Barrel lengths are equal.
HardShell
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Posted: 12/6/2011 9:25:01 AM EST

Originally Posted By jeepinbanditrider:

... They're pretty neat setups especially if you want to be able to reach out there and grab a lot of the rifle or need a bunch of rail space for "stuff". I might build my next upper as a dissapator type.

It is my single favorite configuration for an irons-only AR that will not have any other optics on it, bar none.

Great, inexpensive, practical set-up for a truck/trunk AR, IMHO...




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sgwlower
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Posted: 12/6/2011 9:25:05 AM EST
[Last Edit: 12/6/2011 9:25:43 AM EST by sgwlower]
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M4-AK
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Posted: 12/6/2011 9:40:12 AM EST
It helps to have the M4 profiled barrel in it, and I like having an A1 stock too.
Milo5
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Posted: 12/6/2011 9:52:08 AM EST
Pre ban Bushmaster Dissapator was the first AR15 rifle I bought for myself
I replaced the collapser stock with an A2 stock early on
It was a very good shooting carbine that changed my views on the AR15 rifles for the positive
I have since rebarrelled the gun into a standard A2 20" rifle and still have it in that configuration
HardShell
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Posted: 12/6/2011 10:14:11 AM EST

Originally Posted By M4-AK:

... I like having an A1 stock too.

Same here, both of the ones in my pic above have an A1-length stock (CavArms C1).
I am a CHRISTIAN, a CONSERVATIVE, and a REPUBLICAN... in exactly that order, and completely without apology.
SYSTEM
Posted: 12/6/2011 3:33:51 PM EST
[Last Edit: 12/6/2011 3:33:51 PM EST by Lancelot]
Dupe. See the dissipator thread.