Out of stock
PSA 16" Mid-length 5.56 NATO 1/7 Phosphate MOE Dissipator Upper - Flat Dark Earth - No BCG or CH - 5165448215
Out of stock

PSA 16" Mid-length 5.56 NATO 1/7 Phosphate MOE Dissipator Upper - Flat Dark Earth - No BCG or CH - 5165448215

SKU 5165448215
Brand Palmetto State Armory
Model Number 5165448215
UPC 5165448215
All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.
Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

Product Details


  • 16" Barrel Length
  • .750" Gas Block Diameter
  • Mid-length Gas System
  • 4150V Chrome Moly 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, FDE



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.  

Barrel4150V chrome moly steel.  Phosphate coated and chambered in 5.56 NATO with a 1/7 twist rate, M4 barrel extension, mid-length gas system, and a low profile gas block under the handguard.  Barrel is  is finished off with a Flat Dark Earth MOE M-Lok rifle-length handguard, F-Marked front sight post, and an 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 to order with care, and test fired.  

**BCG and Charging handle are not included.


Q & A