Aero Precision's M4E1 Enhanced in .224 Valkyrie with 18-inch stainless barrel is the premium-tier Valkyrie offering from Aero. Geissele SSA-E trigger, BCM Gunfighter charging handle, and ATLAS R-ONE handguard from the Enhanced lineup combined with a match-grade stainless Valkyrie barrel. The most fully equipped factory .224 Valkyrie AR-15 from Aero. Type: Rifle Action: Semi-Automatic Caliber: .224 Valkyrie Capacity: 30 Year introduced: 2020, USA Weight: 70 oz Overall length: 36.5" Status: Active Intended use: Long-Range Shooting, Varmint Hunting, Precision Rifle