AERO PRECISION M4E1 THREADED 10″ 300 BLK COMPLETE UPPER RECEIVER – ATLAS R-ONE HANDGUARD

DESCRIPTION

This complete upper includes the Aero Precision ATLAS R-ONE 9″ M-LOK Handguard! The R-ONE handguards were designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Aero Precision’s 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.

Available in Black or FDE

**This complete upper does NOT include the BCG or Charging Handle**

Includes:

• M4E1 Threaded Assembled Upper Receiver
• ATLAS R-ONE Handguard of choice
• 10″ .300 Blackout CMV Barrel
• Low Profile Gas Block and Pistol Length Gas Tube
• Product comes assembled

ATLAS R-ONE Handguard Features:

• Full top picatinny rail for optional attachments
• Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
• Compatible with low profile gas blocks
• 9″ Length
• 1.3” Inside diameter
• 1.5” Outside diameter
• Compatible with mil-spec AR15 upper receivers and barrels

Barrel Features:

• Length: 10″
• Twist: 1 in 7
• Muzzle: 5/8×24 Threaded
• Material: 4150 Crome Moly Vanadium
• Finish: QPQ corrosion resistant finish both inside and out
• Gas Block: .750
• Gas Port: .0935
• Gas System Length: Pistol
• Weight: 21oz
• M4 Barrel Extension
• HP and MPI Tested