AERO Precision 13.7" FDE Upper w/ R-oneM-LOK

Aero Precision AR15 13.7" 5.56 Surefire closed tine SOCOM Flash Hider Silencer Mount AR15 Assembled Upper Receiver - Cerakote FDE 12.7" R-ONE M-LOK Handguard-Cerakote FDE 13.7" 5.56 CMV Melonite Barrel Low Profile Gas Block and Mid-Length Gas Tube This complete upper does NOT include BCG or Charging Handle. AR15 Upper Receiver Features: M4 Feedramps .250 takedown pin holes Laser engraved T-marks Includes port door and forward assist installed 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 1.3” Inside diameter 1.5” Outside diameter Compatible with mil-spec AR15 upper receivers and barrels 13.7" 5.56 Mid-Length Barrel Features: 1/7 twist, 4150 CrMoV, QPQ, gas port drilled .750 gas block journal Mid-length gas system, .0785 gas port M4 Feed Ramp Extension HP and MPI tested This complete upper includes our 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.