Aero Precision EPC-9-T Barreled AR9 Upper Receiver - 9mm - 8.3" - S-ONE 7.3"

The Aero Precision EPC-9-T Barreled AR9 Upper Receiver combines an EPC-9-T receiver, machined from custom forged 7075-T6 aluminum with a last-round bolt hold-open mechanism and the standard AR-15 takedown and pivot pin lug pattern with a 8.3-inch 9mm QPQ-coated 4150 chrome moly vanadium barrel and a 7.3-inch ATLAS S-ONE handguard, ready for a bolt carrier group and charging handle.

Features:

• 8.3-inch 9mm QPQ-coated 4150 chrome moly vanadium barrel, 1:10 twist, 1/2x28 thread
• 7.3-inch ATLAS S-ONE handguard
• EPC-9-T receiver with last-round bolt hold-open
• Low-profile gas block and gas tube installed
• Forward assist and port door installed
• Comes assembled; no bolt carrier group or charging handle included
• AR9 platform with standard mil-spec fit
• Black anodized finish

The ATLAS S-ONE handguard uses two mirrored, tapered locking nuts for evenly distributed clamping pressure, with front and rear Picatinny rail sections and the center of the top rail eliminated to save weight. The pistol-length gas system keeps the package compact.

The barrel is machined for compact 9mm pistol caliber builds. You only need to add a bolt carrier group and a charging handle.

Aero Precision brings aerospace-grade manufacturing standards to every receiver, barrel, and small part it builds, so components fit together without extra bench work.