Aero Precision M5 Complete Upper, 308 Winchester, 16" Barrel, 1:10 Twist, Rifle Length Gas System, ATLAS S-ONE Handguard, Cerakote Finish, Flat Dark Earth, Does Not Include BCG or Carry Handle APAR538715M22

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 - 16 .308 CMV Barrel Mid-Length - Low Profile Gas Block and Mid-Length Gas Tube - Product comes assembled - M5 Assembled Upper Features: - Forged from 7075 T6 aluminum - M4 Feedramps - .2795 takedown pin holes - Laser engraved T-marks (Anodized Only) - 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 - 16 .308 CMV Barrel Features: - Twist: 1 in 10 - Threading: 5/8 x 24 - Material: 4150 Chrome Moly Vanadium - Finish: QPQ Corrosion Resistant - Gas Block Journal: .750 - Gas System Length: Mid-Length - Weight: 36 oz - DPMS Barrel Extension - HP and MPI Tested