Aero Precision's M4E1 in 6.5 Creedmoor uses the M5 large-frame receiver set to handle the 6.5 CM cartridge in semi-automatic format. The 18-inch stainless barrel delivers superb long-range accuracy. The M4E1 enhanced lower with flared magwell and Aero's ATLAS R-ONE handguard make this one of the best-equipped factory 6.5 CM semi-autos at its price point. Type: Rifle Action: Semi-Automatic Caliber: 6.5 Creedmoor Capacity: 20 Year introduced: 2019, USA Weight: 116 oz Overall length: 38.5" Status: Active Intended use: Long-Range Shooting, Precision Rifle, Hunting