Aero Precision EPC-9 AR-9 Pistol, 9mm, 5.5 in Barrel, Midwest Industries M-LOK Handguard, SB Tactical Brace, 17+1
This Aero Precision EPC-9 is a customized 9mm AR pistol built on 7075-T6 hardcoat-anodized receivers with a blowback action and Glock-pattern magazine compatibility. It features a Midwest Industries free-float M-LOK handguard, an SB Tactical pistol stabilizing brace, and a 5.5-inch barrel, combining reliable EPC-9 engineering with proven aftermarket components for an efficient, compact package.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are visible handling marks from previous use. The barrel is recessed inside the handguard; an extended blast diverter is required before the firearm is safe to fire in its current configuration. Refer to photos for additional detail.
What’s Included
- 1x 17-round Magpul PMAG GL9 (Glock-pattern) magazine
- Spare 9mm carbine-type buffer with orange bumper
The EPC-9 platform is purpose-built for 9mm, using a simple blowback action and an integrated last-round bolt hold-open system. This example uses Aero’s slick-side upper with no forward assist or ejection-port door and an enlarged ejection port tailored for pistol-caliber reliability.
The Midwest Industries free-float aluminum handguard provides a continuous top Picatinny rail and M-LOK slots at 3, 6, and 9 o’clock for modular accessory placement. The visible “M” marking is the Magpul M-LOK compliance logo, not an MI brand mark.
Controls are AR-pattern, with left-side safety/selector pictograms and a bolt catch positioned above the magazine release. A textured polymer AR-pattern pistol grip and an SB Tactical pistol stabilizing brace are installed on a round pistol receiver extension secured with a castle nut and end plate.
The receivers are 7075-T6 aluminum with a hardcoat anodized finish and are marked Aero Precision, Lakewood, WA. Capacity is 17+1 with the included 17-round magazine. A carbine-diameter 9mm-type buffer with an orange bumper is installed, and a spare buffer of the same type is included.
The 5.5-inch barrel keeps the package compact. As noted in the condition section, the muzzle sits recessed within the handguard; an extended blast diverter is required for safe operation in the current configuration.