Spatha-9 Enhanced Mil-Spec Lower

The Spatha-9EM (Enhanced Mil-Spec) is the base model in our AR-9 carbine series.

This lower is true Mil-Spec everywhere it should be, and much more everywhere else.

The platform is selected to allow unlimited potential. If you start out with this upper, you will be able to upgrade up to and beyond our Duty and Competition finish level.

Assembled in the USA using parts manufactured in the USA.

SKU: SPA9-LR-EM Categories: , Tags: ,

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

 

Below are some highlights of features of our Spatha-15EM lower:

  • Aero Precision EPC Stripped Lower Receiver
    • The Aero EPC lower has the best combination of features, quality, and value for a dedicated PCC.  It offers unlimited potential for a build.
  • Everything Mil-Spec or Better
    • We build our lowers with true Mil-Spec or better components.  It is important to emphasize this because many claim to use Mil-Spec components, but use components made of inferior materials/quality.  We refuse to cut corners to save a buck.
  • Buffer: TBD
    • TBD
  • Buffer Spring: Mil-Spec Round Wire Buffer Spring (AR-10)
  • Buttstock: Mil-Spec M4 Buttstock
  • Grip: Mil-Spec A2 Grip
  • Magazine Release Button: Mil-Spec Steel Magazine Release Button
  • Receiver Extension: Schmid Tool 6-position, 4-hole, Dry Film Lube Carbine Receiver Extension
    • We went a little further than we had to for the receiver extension (buffer tube). We chose the Schmid Tool (because they are amazing) 7075-T6 tube and went with their 6-position series for the additional adjustability. We elected the 4 drain hole model, to allow drainage from the receiver extension if it ever gets submerged in the field. We went with a dry lubed version, because the buffed-in application of dry film lube improves the functionality and efficiency of the buffering system.
  • Trigger: Timney Impact AR PCC Trigger
    • You should always use a PCC-specific trigger in your PCC build; the added stress of the direct blowback design of the pistol caliber AR will break standard hammers (this is why most triggers will come with a “not for PCC” disclaimer).  Timney makes the best PCC-specific trigger on the market.  The Impact AR trigger is their budget-friendly PCC trigger.
  • Safety Selector: Mil-Spec GI Safety Selector

 

Critical finishes and dimensions of individual components are inspected before they 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):

  • Receiver extension (buffer tube) threads lubricated with AeroShell.
  • Receiver extension castle nut torqued to 40 ft. lbs.
  • Receiver extension castle nut properly staked in two locations.
  • Full lubrication 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 lower and what you are paying.

Spatha-9EM Lower Receiver (Black)

 

Spatha-9EM Lower Receiver (FDE)

Weight 5 lbs
Dimensions 18 × 8 × 4 in

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