Aero Precision complete rifle built around the ATLAS R-ONE handguard. Free-float M-LOK rail with superior rigidity and indexing accuracy. Type: Semi-Auto Rifle Action: Semi-Automatic Caliber: 5.56x45mm Capacity: 30 Year introduced: 2020, USA Weight: 62.5 oz Overall length: 32.5" Status: Active Intended use: General Purpose/Competition