M5 18" .308 SS Complete Upper Receiver w/ ATLAS R-ONE Handguard

The R-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: M5 Assembled Upper Receiver ATLAS R-ONE Handguard of choice 18" .308 SS Barrel, Rifle Length Low Profile Gas Block and Rifle Length Gas Tube Product comes assembled This complete upper does not include a BCG or Charging Handle. These products may be selected as add-ons under the Finish Your Build tab. M5 Assembled Upper Features: Forged from 7075 T6 aluminum M4 Feedramps .2795 takedown pin holes Laser engraved T-marks DPMS High Profile (.210) Tang) Includes port door and forward assist 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 1.5" Inside diameter 1.75" Outside diameter Compatible with AR-308 Upper Recievers with a thread pitch of 1-7/16 x 16 along with a DPMS High Profile (.210) Tang Rail Learn More about our NEW ATLAS Handguards 18" .308 Stainless Steel Barrel Features: Twist: 1 in 10 Threading: 5/8 x 24 Material: 416R Stainless Steel Finish: Bead Blasted Gas Block Journal: .750 Gas System Length: Rifle Length Weight: 51.2 oz DPMS Barrel Extension HP and MPI Tested