AERO PRECISION AR15 .223 REM ATLAS R-ONE M-LOK® Complete Upper BLK 10.5″

Includes:– AR15 Assembled Upper Receiver with No Forward Assist – Included 5.56 BCG Phosphate – Included Charging Handle Standard – Included A2 flash hider – 9″ M-LOK ATLAS R-ONE Handguard – 10.5″ 5.56 CMV Barrel – Low Profile Gas Block and Carbine Length Gas TubeAR15 Upper Receiver with No Forward Assist Features:– M4 Feedramps – .250 takedown pin holes – Laser engraved T-marks – No forward assist provisions – Port door installed – Compatible with all AR-15 MIL-SPEC Lower ReceiversATLAS 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 diameter10.5″ 5.56 Barrel Features:– 5.56 Nato 10.5″ Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled – . 750 gas block journal – Carbine length gas system, .0785 gas port – M4 Feed Ramp Extension – HP and MPI tested