PSA 16" Mid-length 5.56 NATO 1:7 Stainless Steel Freedom MOE Dissipator - Without BCG or CH - 43632

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PSA 16" Mid-length 5.56 NATO 1:7 Stainless Steel Freedom MOE Dissipator - Without BCG or CH - 43632

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Quick Overview

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SKU: 43632
UPC: 43632
MFR#: 43632

16" Barrel Length
.750" Gas Block Diameter
Mid-length Gas System
416 Stainless Steel Barrel
5.56mm NATO Chamber
1 in 7" Twist Rate
M4 Feed ramps
A2 Flash Hider
7075 Forged Upper Receiver

Magpul M-Lok Rifle Length Handguards

No BCG or Charging handle

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Once upon a time, a "dissipator" AR was created by taking a 20" rifle-length gas system upper and cutting the barrel down to 16".  This allowed the shooter to keep the long sight radius of a rifle for accuracy, but keep the carbine length barrel for maneuverability.  The proximity of the gas port to the muzzle, however, played havoc with timing and made reliability a hit or miss proposition.   Advances in AR technology  have produced reliable carbine and mid-length gas systems, that can be hidden using low-profile gas blocks.  This allows for a front sight base to be pinned in the rifle position for the longer sight radius without the worry of the unorthodox gas port location affecting operation.   We use the term "mock" to differentiate our dissipator from a cut-down rifle length version.  

Barrel416 Stainless steel. Chambered in 5.56 NATO, with a 1/7 twist, M4 barrel extension, and a mid-length gas system.  Barrel is  is finished off with a MOE M-Lok rifle-length handguard,  F-Marked gas sight base, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability, mil-spec finish. These uppers are made for us right here in the USA by a mil-spec manufacturer.

Each upper is assembled with care and test fired.   BCG and Charging handle are not included.

SKU: 43632
SKU 43632
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 43632

Questions and Answers

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Browse 4 questions Browse 4 questions and 12 answers
What is the barrel profile under the handguards?
Burntvalve on May 8, 2018
Will it fit on a colt lower ?
Jon S on May 9, 2018
BEST ANSWER: PSA uppers have fit my colt match competition lower fine.
With the current handguard can a vertical foregrip be mounted straight from the box?
Tray B on May 3, 2018
BEST ANSWER: ITS A M-LOCK SO USE A M-LOCK ,I HAVE THEM ON MY OTHER AR'S BUT FIND WITH THE LONGER HAND GUARD I DONT REALLY NEED IT PERSONALLY.
I’m curious. That looks like that is a rifle length gas system not a mid-length on the 16” barrel. Am I correct?
James S on May 8, 2018
BEST ANSWER: This uses a low profile gas block at the mid length position & a fsb pinned at rifle length position

Reviews

4.8 / 5.0
14 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
11
3
0
0
0
Love My Dissy!
I bought this upper and placed it on a PSA lower with an A1 stock. This is one of my favorite rifles to shoot. I love my Dissy!
May 10, 2018
Get one .
The moe dissapator is a good low cost high quality upper.
I have ran it through 2 classes using an aim surplus exo bcg, with a total round count of 1600ish rounds with 4 malfunctions early on ,which were caused by a burr in the bolt lock up .
May 3, 2018
Purchased
5 months ago
Very Happy
Looks great! Runs even better!
User submitted image
Added May 1, 2018
May 1, 2018
Purchased
2 months ago
great performance at greater price
very happy with all my PSA stuff but always hard to resist a Dissy. These two are for my kids. I will continue to return to PSA for good quality at a great price
great rifles
great rifles
April 24, 2018
Purchased
2 months ago
Great PSA Upper! Update to previous review...
This last weekend I took the rifle to the range and shot a few rounds at 25 yards to adjust the rear sight then proceeded to hit all the steel plates at 25/50/100 yards before sharing the rifle with my sons- we had a great time with no problems attributed to the rifle (2 FTF with Wolf/Tula ammo). The PMC 62g ammo shot flawlessly!

Update on BCG/CH and Magpul rear sight/carry case kit- these were received on March 9 thanks!

Your Review (submitted on March 7 2017):
Ordered on Wednesday March 1 and received from UPS driver by dinner time on Friday March 3! The upper was packed very well and appears to be an excellent build. Unfortunately I can't shoot it yet!

** Note- I also ordered the daily deal BCG/CH kit and Magpul rear sight/carry case kit which show "shipped" online but have not been received yet. I called customer service several times but the wait time was lengthy and after 25 minutes I was disconnected once. Finally reached a customer service rep who stated that the 2 kits did not ship yet and would have to be reordered. Although I am receiving sales emails I have not received a shipping email yet! **
March 27, 2017
Great product and fast shipping on upper! Unfortunate delay on other needed items!
Ordered on Wednesday March 1 and received from UPS driver by dinner time on Friday March 3! The upper was packed very well and appears to be an excellent build. Unfortunately I can't shoot it yet!

** Note- I also ordered the daily deal BCG/CH kit and Magpul rear sight/carry case kit which show "shipped" online but have not been received yet. I called customer service several times but the wait time was lengthy and after 25 minutes I was disconnected once. Finally reached a customer service rep who stated that the 2 kits did not ship yet and would have to be reordered. Although I am receiving sales emails I have not received a shipping email yet! **
March 7, 2017
Front sight problems
First off everything looks put together well. Trying to sight in the groups while accurate are centered about 4" high. This with the front sight pin .090 above the FSB shelf. I started with a Magpul MBUS switched to an A2 milspec sight...no difference. I really want this set up to work and will probably have a front sight pin fabricated that is .090-.100 higher to get the pin base back down in the FSB. Not sure why this is and open to any suggestions. Have already ordered a KNS extended pin but the .040 difference will not solve the problem. Other reviews do not indicate this issue so I assume I am unlucky. I could just put a red-dot on it but that kind of defeats the Dissipator concept.
February 28, 2017
Great upper
Really grabs attention at the range. Everyone wants to know what it is and wants to shoot. Quality upper great sight radius and a quirky part of US ingenuity of Vietnam conflict. Great addition to any AR 15 collection. Thanks PSA!
November 30, 2016
Great buy! Accurate Nice Looking Upper
Great value. I love this upper. Love the looks of a dissipator. I paired with a new frontier armory lower and it fits perfectly. I ran about 100 rounds through with zero malfunctions. Zero adjustments with the carry handle rear sight this thing was accurate right out of the box. Packaging was great no scuffs or other blemishes. I know a lot has been said about customer service so I feel compelled to comment that I had originally purchased a 5.56 PTAC and PSA had an issue with the manufacturer and ended up cancelling my order. When I contacted them they had this Freedom Dissipator go on sale around the same time so for just a few dollars more they expedited shipping for me and got a better upper (imho) delivered to me within 3 days before Thanksgiving and on my actual birthday. I really appreciated that. Thanks Dylan D. in customer service. Because of him and the great value found here I will definitely be a returning customer.
November 28, 2016
Great for iron sights
I am over 50 and need readers (2.5 magnification) so I can't focus on the front post on normal AR front sights. I built one with manual sights only and the dissipator front sight is far enough out that I can see it well. At 50 yards this thing is 3 MOA with my old eyes and irons. I could not have asked for more. The gun is very repeatable with a 4X scope (less than 2 moa) but I start to fade some at 100 yards with irons only. This upper allows me to shot fast and reasonably well with irons sights again. At 30 yds and less I like it better than an Aim Point (more fun).
September 14, 2016

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