View Full Version : Wanting a mid length Dissipator
I have been looking at a Bushmaster. Does Bushmaster now make a Dissy with a mid length gas system? Their website is vague and only states that the gas block is behind the front sight block.
I have also considered building from a Del-ton kit. But this kit doesn't specify if it is a mid length system or carbine length system.
http://www.del-ton.com/Rifle_Kit_p/rkt112.htm
ForTehNguyen
01-19-12, 09:23
http://palmettostatearmory.com/index.php/ar-15-05/rifle-kits/16-hammer-forged-mid-length-mock-dissipator-rifle-kit.html
No bushmaster.
Does this mean that Bushmasters are all carbine length?
http://palmettostatearmory.com/index.php/ar-15-05/rifle-kits/16-hammer-forged-mid-length-mock-dissipator-rifle-kit.html
I just returned a PSA upper due to the fact that the barrel where the FSB is mounted is undersized(.735" instead of .750"). PSA is aware of this and has said that they are trying to get FN to make barrels that are .750" out to the muzzle. It could be up to 5 more months before we see them.
I think he's saying don't buy Bushmaster, period. They are not a highly regarded company around here (and with good reason)...
Does this mean that Bushmasters are all carbine length?
Does this mean that Bushmasters are all carbine length?
Yes, they are all carbine length.
Yes, they are all carbine length.
Unless they are rifle length.
Unless they are rifle length.
Very true. ;)
I have been looking at a Bushmaster. Does Bushmaster now make a Dissy with a mid length gas system? Their website is vague and only states that the gas block is behind the front sight block.
I have also considered building from a Del-ton kit. But this kit doesn't specify if it is a mid length system or carbine length system.
http://www.del-ton.com/Rifle_Kit_p/rkt112.htm
For just a little more money, you can buy something high quality.
Read the stickies in the various subforums, and enjoy your stay at M4C.
DeltaSierra
01-19-12, 11:41
If you can hold your horses, BCM is working on getting a Dissy on the market. Knowing what I know about BCM, they will probably be offering a mid-length gas system...
Exiledviking
01-19-12, 11:43
Is this what you ordered from Palmetto?
http://palmettostatearmory.com/index.php/ar-15-05/complete-uppers/psa-16-hammer-forged-midlength-dissipator.html
Leonidas24
01-19-12, 12:16
I recently sold the Dissy upper that I bought for my wife from PSA. It was a nice upper with good finish and it functioned for the 500 rds that we put through it; however it was too heavy for her. The MOE handguards a lot of people use are heavier than a lot would expect, so keep that in mind.
A 14.5" LW is in the works, with either a Samson or Geissele 11" rail.
Is this what you ordered from Palmetto?
http://palmettostatearmory.com/index.php/ar-15-05/complete-uppers/psa-16-hammer-forged-midlength-dissipator.html
The one that I purchased didn't have the FN barrel. They no longer have it listed on thier website. It was $449 (complete).
Thanks for the help guys. All comments are appreciated.
For just a little more money, you can buy something high quality.
Read the stickies in the various subforums, and enjoy your stay at M4C.
If you can hold your horses, BCM is working on getting a Dissy on the market. Knowing what I know about BCM, they will probably be offering a mid-length gas system...
I do want high quality and I am not in a big hurry. I am also looking at an A2 since this will strickly be my "irons" gun.
I recently sold the Dissy upper that I bought for my wife from PSA. It was a nice upper with good finish and it functioned for the 500 rds that we put through it; however it was too heavy for her. The MOE handguards a lot of people use are heavier than a lot would expect, so keep that in mind.
A 14.5" LW is in the works, with either a Samson or Geissele 11" rail.
The PSA Dissy upper that I just returned seemed light to me. But I have been shooting 16" Hbar RRA for several years.
Got mine from Spikes and have been very pleased with it. Its a Lightweight Middy..shoots smooth and accurate.
http://i210.photobucket.com/albums/bb244/a996hawk/IMG_5623.jpg
Outside of a desire to shoot iron sights, the Dissy doesn't really make a lot of sense. But if I was going to buy one available now I'd get the LW Spikes because it offsets the overall heavier configuration a bit.
This is the PSA Dissipator Upper....
http://i70.photobucket.com/albums/i90/TedG954/DSC_0007.jpg
Outside of a desire to shoot iron sights, the Dissy doesn't really make a lot of sense. But if I was going to buy one available now I'd get the LW Spikes because it offsets the overall heavier configuration a bit.
"Irons" is my sole purpose for this rifle. I have made my other AR into my "optics" gun. The dissipator seems to fit this bill perfectly for me. I am a competative shooter and I regularly shoot 3-gun and rifle matches.
Thanks for all of the suggestions guys. I will look into CMMG, Spikes, etc. I promise not to buy a Bushmaster. :)
BTW, I didn't actually purchase my RRA, I spent $20 and won it in a raffle in 2004. It has been a great rifle though. I have a little over 3000 rounds(mostly Wolf) through it and the only hiccup was a when I shot a friends reload.
I used a BCM Dissipator to run irons in a Randy Cain Carbine 1 course.
http://digital.swatmag.com/SWAT/2011/SWAT1107/?BuildGuid=d139dcd6-a07f-409e-9973-07383f6ebeb5
more on the gun
https://sites.google.com/site/tacticalyellowvisor/reviews---guns/bcm-dissipator
This is how it looked for the class
http://i134.photobucket.com/albums/q111/rob_s/gun%20stuff/BCM/BCMdissyport.jpg
this is how it looks now
http://i134.photobucket.com/albums/q111/rob_s/gun%20stuff/BCM/photo-22.jpg
I am loving that BCM Rob. Very nice. That is where I prefer my sling to mount too. Thanks for the link to the write up.
I just returned a PSA upper due to the fact that the barrel where the FSB is mounted is undersized(.735" instead of .750"). PSA is aware of this and has said that they are trying to get FN to make barrels that are .750" out to the muzzle. It could be up to 5 more months before we see them.
Can you clarify this a little bit for me?
The barrel AT the gas block is 0.735" or the barrel FORWARD of the gas block is 0.735"? and if the former is the ID of the gas block also 0.735" or is it 0.750"?
and, most importantly, did the gun run?
Can you clarify this a little bit for me?
The barrel AT the gas block is 0.735" or the barrel FORWARD of the gas block is 0.735"? and if the former is the ID of the gas block also 0.735" or is it 0.750"?
and, most importantly, did the gun run?
The diamter under the gas block was .735" too. A close visual inspection revealed what looked like a gap between the barrel and sight block. I shined a flashlight from the other side of where I was looking and I could actually see light between the barrel and gas block.
As stated previously, PSA has stated that they have requested that FN run some barrels with the .750" diamter all the way to the muzzle.
It is really a bummer because this is the EXACT upper that I wanted; mid length Dissy with a medium barrel profile from a reputable manufacturer.
I've been thinking about a dissy for my next build. I think I'll wait and sww if BCM comes out with one. I like the 2 middy's I've got.
Adco makes a med contour midlength dissipator. They called it the "cruiser."
From websight:
RRA UTE Upper Receiver
WOA B/BC/CH w/0-Ring
ADCO 16" MID gas System 1:7 CM-V chrome lined barrel
MID Gas System
My brother has one, and its pretty nice, has been 100% reliable thus far. They are out of stock right now though.
http://www.adcofirearms.com/itemdetails_.cfm?inventorynumber=1862
more on the gun
https://sites.google.com/site/tacticalyellowvisor/reviews---guns/bcm-dissipator
There's nothing there, that I can find...
Am I doing something wrong, or is the review not there?
I read the write up on Tacticalyellowvisor.net and I was impressed. I am going to wait for BCM while I decide if I really "need" an irons only gun.
I was looking into a PSA dissy and decided I'd rather wait for BCM.
Then again I might just go middy.
But for Irons only, extra space up front, and looking cool dissy's do it.
Adco makes a med contour midlength dissipator. They called it the "cruiser."
From websight:
My brother has one, and its pretty nice, has been 100% reliable thus far. They are out of stock right now though.
http://www.adcofirearms.com/itemdetails_.cfm?inventorynumber=1862
This looks intersting. Are ADCO and WOA reputable manufacturers? $700 seems a little high, but the rear sight is included.
I read the write up on Tacticalyellowvisor.net and I was impressed. I am going to wait for BCM while I decide if I really "need" an irons only gun.
Funny, I just recently decided that I "needed" an optic rifle. :haha: I enjoy the heck out of shooting "irons".
The diamter under the gas block was .735" too. A close visual inspection revealed what looked like a gap between the barrel and sight block. I shined a flashlight from the other side of where I was looking and I could actually see light between the barrel and gas block.
As stated previously, PSA has stated that they have requested that FN run some barrels with the .750" diamter all the way to the muzzle.
It is really a bummer because this is the EXACT upper that I wanted; mid length Dissy with a medium barrel profile from a reputable manufacturer.
Forgive my stupidity, I'm just still trying to understand this.
Everything forward of the shoulder is 0.735" OD? So under the gas block as well as under the front sight base?
And did it run? Could it be zeroed? From what you're saying all of the PSAs must suffer from this malady, but I haven't seen any reports of failures with them yet.
Forgive my stupidity, I'm just still trying to understand this.
Everything forward of the shoulder is 0.735" OD? So under the gas block as well as under the front sight base?
And did it run? Could it be zeroed? From what you're saying all of the PSAs must suffer from this malady, but I haven't seen any reports of failures with them yet.
No problem man. Heres the thing, this is a mid length gun. The gas block is under the handgaurd, so from a functioning standpoint, the gun should run fine. But on the PSA dissipator barrel that I had, the diamter under the FSB is .735" and the bore of the FSB is .750". The FSB actually seemed pretty snug bacause it is pinned to the barrel. But I noticed some flexing of the top of the FSB due to the space between the barrel and FSB. This is a major concern since this was going to strickly be an iron sights gun.
My PSA Middy Dissy. Old photo. It wears an OD Ergo Grip and OD Magpul ACS now. Shoots fine.
http://i614.photobucket.com/albums/tt230/Vgex/Free%20Arms/AR%20PSA/4.jpg?t=1317941419
This looks intersting. Are ADCO and WOA reputable manufacturers? $700 seems a little high, but the rear sight is included.
White Oak armament makes some pretty accurate barrels and are VERY popular with competitors. As for "how well" they are made on a technical basis, maybe someone with experience can tell, as Ive never taken measurements. Iraqiguns has a lot of experience in these things, maybe hes come across them and can weigh in his expert opinion.
Adco is pretty highly respected, and I've never heard of an issue with a gun they have put together. They are most well known for doing some of the best cut/crown and perm-attatch jobs in the industry, if that means anything. All they do is that and put together ars, and have a LOT of experience with both.
Breadstick
01-24-12, 18:49
I took my PSA took the pops house whom has a tool to messure such dimensions. Mine is .750 at the FSB. With no light shining through. You had me worried mine was like this too. I got mine back in Sept. Maybe different batch of barrells.
Strait irons.
http://i186.photobucket.com/albums/x251/Breadstick360/CompleteDissyIV.jpg
I took my PSA took the pops house whom has a tool to messure such dimensions. Mine is .750 at the FSB. With no light shining through. You had me worried mine was like this too. I got mine back in Sept. Maybe different batch of barrells.
That is freakin' awesome news. Did you get the FN barrel or the standard barrel?
I have no issues with my PSA Dissy either... I just replaced the MOE grip with a Centurion rail.
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/402170_2929671036573_1104875782_3959508_1609085992_n.jpg
-Tom
ADCO could also build you a Dissy upper. You could buy a BCM mid length and send it off to them. The only other part you would have to buy would be a FSB for a LW barrel.
White Oak armament makes some pretty accurate barrels and are VERY popular with competitors. As for "how well" they are made on a technical basis, maybe someone with experience can tell, as Ive never taken measurements. Iraqiguns has a lot of experience in these things, maybe hes come across them and can weigh in his expert opinion.
Adco is pretty highly respected, and I've never heard of an issue with a gun they have put together. They are most well known for doing some of the best cut/crown and perm-attatch jobs in the industry, if that means anything. All they do is that and put together ars, and have a LOT of experience with both.
Thanks for the info.
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