Description 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 24″ 6.5 Creedmoor 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 24″ 6.5 Creedmoor Stainless Steel Barrel Features: Twist: 1 in 8 Threading: 5/8 x 24 Material: 416R Stainless Steel Finish: Bead Blasted Gas Block Journal: .936 Gas System Length: Rifle Length Weight: 82.2 oz DPMS Barrel Extension HP and MPI Tested Specifications: Shipping to FFL Dealer Required No Made In America? Yes Shipping to FFL SOT Dealer Required No Platform M5 Series ATLAS Caliber 6.5 Creedmoor Barrel Length 24″ Additional information Weight 82.2 oz Dimensions 36 × 5 × 5 in Barrel Finish Other Barrel Profile M4 Gas System Length Rifle Barrel Length 24 Cartridge Compatibility 6.5 Creedmoor Twist Rate 1-8 BCG / Charging Handle Not Included MPN APAR538705M47 UPC 840014610013