Description

Our uppers are assembled by SOTAR-trained master armorers in North Carolina using components manufactured exclusively in the USA.

The Spatha-9DC retains the following features of the EM model:

• Aero Precision EPC Enhanced Upper Receiver
  • The Aero EPC upper has the best combination of features, quality, and value for a dedicated PCC.  It offers unlimited potential for a build.
• Barrel: Ballistic Advantage, Straight Profile, 9mm Luger, 4150 CroMoV, QPQ Barrel
  • 16″ makes it easy to stay legal with a carbine.  We use 4150 Chrome Molybdenum Vanadium steel over stainless for durability.

The DC model includes the following upgrades to the EM model:

• Charging Handle: Radian Raptor Ambidextrous Charging Handle
  • Few people will scoff at the Raptor.  Radian makes the best ambidextrous charging handle on the market.
• Bolt: Cryptic Coatings DLC PCC Bolt
  • Cryptic Coatings makes the best and most affordable PCC bolts.  We upgrade to the diamond-like carbon (DLC) finish for our DC finish level for the best possible durability and lubricity.
• Muzzle Device: Precision Armament HYPERTAP Muzzle Device
  • The HYPERTAP is the most effective tunable muzzle device on the market.  It is both a muzzle brake and a compensator, so it very effectively reduces recoil and leverages the flow of gas to control muzzle rise.  Both of these effects mean visualizing hits on target and quick follow up shots.  Shoot an A2 flash hider and then the HYPERTAP, and you’ll understand why its out top pick.

Critical finishes and dimensions of individual components are inspected before we accept them into inventory.  To learn more about our quality control gauging and inspection, visit our Quality Promise page.

Each upper receiver includes the following assembly and QC steps (full schedule of all 82 points of inspection for our builds can be found in our Quality Promise page; note that some do not apply to the PCC):

• Barrel extension and barrel nut threads lubricated with AeroShell 64 grease.
• Barrel nut exercised and torqued to 55 ft. lbs. (EPC Enhanced Upper).
• Barrel muzzle threads coated with Molykote G anti-seize (for muzzle devices that use a crush washer or lock nut).
• Muzzle device properly timed and lock nut torqued to 20 ft. lbs. per manufacturer specifications.
• VibraTite VC3 applied to handguard screws and screws torqued to 25 in-lbs.
• Full lubrication with our own lubricant blend per our standard procedure.
• Full safety and function check per our standard procedure.
• Live fire test with 3 rounds of Federal 147gr (troubleshoot and correct root cause of any malfunction).

The tables below detail what we put in the upper and what you are paying.

Spatha-9DC Upper Receiver (Black)

Spatha-9DC Upper Receiver (FDE)