Dissipator Options, mostly the barrel [Archive]

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ASH556

08-01-13, 16:05

So with the great fall in prices recently and already having two very nice, squared-away rifles, I've got the itch to build a KISS, range beater. I have a PSA lower and LPK. I'm wanting to try out the fixed MOE skeleton stock. For the upper, I want a lightweight with a 12" handguard and a fixed FSB. For the sake of keeping costs down and since I already have two other rifles with rails, I want to go with MOE handguards. Not enjoying the cramped style of a 7" set of handguards, I was thinking of going with a dissipator with 12" MOE handguards. I have no problem chopping an FSB, but I don't have a way to drill a new FSB for taper pins @ the end of the barrel to make my own dissipator. ADCO charges $130 for the service. Even then, I've read some about strange barrel tapers making it an issue to do so.

My question is, does anyone make a LW dissipator barrel or URG?

Thanks!

karmapolice

08-01-13, 16:41

This would be interesting, I think BCM made some dissipator uppers for a minute but don't think they do anymore.

I think my next build is going to be a 14.5" pinned with bcm comp otherwise a clone of my 16" gun and then do the same with another sbr. I want to see this idea of yours come to fruition and play with it ;)

AKDoug

08-01-13, 16:44

PSA makes one. No clue when it'd be back in stock. http://palmettostatearmory.com/index.php/ar-15-05/complete-uppers/psa-16-cmv-cl-midlength-premium-dissipator.html

ASH556

08-01-13, 16:51

operator81

08-02-13, 22:31

Spikes makes a dissipator upper available through AIM Surplus. I've been on the notify list for over 6 months now :-(.

Split66

08-03-13, 01:41

There's a dicked up Bushmaster dissy at my LGS for $1500. That's the last one I've seen in a while.....and I doubt you are interested.

:(

Shiz

08-03-13, 08:51

If BCM ever did a production run of their Dissy, I would have one by now. One of those things I was hoping would come to pass but never did.

peabody

08-03-13, 09:22

del ton has dissipator barrels..
rifle gas ..
i love mine . it was an HBAR . i took it to my machine shop. got a bunch of weight off it.. silly thing shoots really well.

MFWIC2

08-31-13, 13:17

I know this is a silly question. But are PSA Dissipator uppers on the same level as far as quality and durability as BCM uppers?

MiamiCracker

08-31-13, 13:29

I know this is a silly question. But are PSA Dissipator uppers on the same level as far as quality and durability as BCM uppers?

PSA is gtg.

scoutchris

08-31-13, 13:32

del ton has dissipator barrels..
rifle gas ..
i love mine . it was an HBAR . i took it to my machine shop. got a bunch of weight off it.. silly thing shoots really well.

You put a del ton barrel on a lathe? That doesn't seem smart.

VIP3R 237

08-31-13, 13:45

I know this is a silly question. But are PSA Dissipator uppers on the same level as far as quality and durability as BCM uppers?

Both are getting their chf barrels from FN. And spec wise they seem to be equal.

mtdawg169

08-31-13, 14:19

Both are getting their chf barrels from FN. And spec wise they seem to be equal.

When it comes to a dissy, my primary concern would be port size. Does anyone know what the ideal port size should be?

William B.

08-31-13, 14:29

I'm pretty sure most dissy's have carbine-length gas systems, so I believe it should be a .063" port.

mtdawg169

08-31-13, 14:35

I'm pretty sure most dissy's have carbine-length gas systems, so I believe it should be a .063" port.

My bad, I thought we were talking about using an actual rifle length gas system. Nevermind!

matthewdanger

08-31-13, 15:52

The Spike's GMP upper (the previously mentioned Spike's upper available only at AIM Surplus) has a lightweight barrel profile and mid-length gas. Mine has run well but it still has a relatively low round count (just over 600 rounds) so I can't really speak to reliability in any kind of long term way.

I like to have a fixed front sight base that is attached to the barrel if possible so it is a good fit for me. I put a Centurion Arms C4 12" Rail on it. It is a great setup.

The GMP's low profile gas block is pinned which is nice. I don't think the PSA gas blocks are pinned but I could be wrong on that.

RWH24

08-31-13, 19:05

Aim Surplus and Spike's Tactical have a exclusive at Aim Surplus.

http://www.aimsurplus.com/product.aspx?item=XSTU5950MOE&name=Spikes+Tactical+16%22+Mid-Length+GMP

Barrel is certified MIL-B-11595E CMV, M4 barrel extension, Chrome chamber and bore, 5.56mm Nato chamber, 1:7 Twist, Magnetic particle testing on every barrel, Phosphate finish.
Light-weight Contour barrel with pinned and melonited low profile mid-length gas system.
Barrel is Phosphate finished under the .625" F marked A2 front sight base with stainless steel plug set at the rifle length handguard position.

I had one of these briefly, so brief I never shot it. A guy thought it had a tacticool factor of WOW he paid and traded me out of it.
Had a Spike's complete lower with an A5 original SOPMOD and ALG/ACT trigger. It was a well balanced rifle and having the longer sight radius was nice with the TROY fixed rear sight. Really do miss that rifle, It was a low budget build. 2 pieces and snap snap.:happy:

eodcolret

09-01-13, 10:20

Believe CDNN had some Police trade in dissipator carbines for sale for $999. I deleted the email where the listed them but might be worth a call since the flyer was sent out on Friday 30 Aug. Might be worth your effort.

RWH24

09-01-13, 13:17