This EPC-9 Complete Upper Receiver comes standard with our ATLAS S-ONE Handguard. The S-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Includes:

• EPC-9 Upper Receiver
• 7.3″ ATLAS S-ONE Handguard
• 8.3″ 9mm CMV Barrel
• Product comes assembled
• This complete upper receiver does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab.
• The muzzle device included with this complete upper receiver is NOT pinned nor welded to this barrel.

EPC-9 Upper Receiver Features:

• Last round bolt hold open mechanism
• Accepts most AR15 compatible barrel nuts and handguards
• Dimple above threads to allow for proper handguard timing
• Standard AR15 takedown/pivot pin lug pattern
• Machined from custom forged 7075-T6 aluminum

ATLAS S-ONE Handguard Features:

• Front and rear picatinny rail
• Eliminated center of top rail for weight reduction
• Indexing grooves in 12:00 position for positive grip control
• Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
• 1.3″ Inside diameter
• 1.5″ Outside diameter
• Compatible with mil-spec AR15 upper receivers and barrels

8.3″ 9mm Barrel Features

• Chamber: 9×19
• Length: 8.3″
• Twist: 1 in 10
• Threading: 1/2″x28
• Material: Chrome Moly Vanadium
• Finish: QPQ corrosion resistant finish both inside and out
• Aero Precision EPC-9 Threaded 8.3″ 9mm Complete Upper Receiver w/ ATLAS S-ONE 7.3″ Handguard