Springfield Armory Echelon Alpha 4.0C Gear Pac, 9mm, Four 10-Round Magazines, RFX11 Optic The Springfield Armory Echelon Alpha 4.0C Gear Pac combines a compact 9mm Luger pistol with four 10-round magazines, a Viridian RFX11 optic and a pistol bag. The 4-inch barrel and compact black polymer frame identify the firearm configuration. The magazines, optic and bag make the package contents clear when choosing this low-capacity Gear Pac. The Variable Interface System provides the pistol's optic-mounting arrangement, and U-Dot sights provide its conventional sight system. A hammer-forged barrel and billet-machined slide use a Melonite finish. The four supplied magazines each hold 10 rounds, so the included quantity and magazine capacity remain separate specifications. The pistol bag provides storage for the packaged firearm. Key Features Gear Pac contents: Pistol with optic, bag and four magazines. Compact configuration: 4-inch barrel and small grip module. Optic-ready system: Variable Interface System on the slide. U-Dot sights: White-dot front and Tactical Rack U-Dot rear. Specifications Manufacturer: Springfield Armory Model: Echelon Alpha 4.0C Manufacturer part number: ECA9409BLC-PAC Caliber: 9mm Luger Barrel length: 4 inches Magazine capacity: 10 rounds Magazines included: 4 Color: Black Package Contents Echelon Alpha 4.0C pistol 4 x 10-round magazines Viridian RFX11 optic Pistol bag Shop the Springfield Armory Echelon Alpha 4.0C Gear Pac, 9mm, Four 10-Round Magazines, RFX11 Optic at BattleHawk Armory.