Otis Technology .223/5.56mm MPSR Cleaning Kit Black. 56mm Modern Piston Sporting Rifle Cleaning System. This Otis Technology 5.56mm Modern Piston Cleaning System comes with an 8" and 30" Memory-Flex cables for effective and correct Breech-to-Muzzle cleaning. The Otis Technology 5.56mm Firearm Cleaning System cleans lubricates and protects in one efficient step for a complete breakdown and fine cleaning of all critical and hard to reach areas of your firearm. Specifications for Otis Technology .223/5.56mm MPSR Cleaning Kit: Manufacturer: Otis Technology Color: Black Projectile Caliber: .224 Caliber Caliber: 5.56x45mm NATO Gun Make: AR Platform Gun Model: Universal Width: 5 in Depth/Thickness: 3 in Height: 8.75 in Weight: 0.94 lb Package Type: Plastic Carry Case Gun Type: Rifle Features of Otis Technology .223/5.56mm MPSR Cleaning Kit The MPSR Cleaning Kit is packed with the necessary gear to clean and maintain piston driven AR/modern sporting rifles. Made with pride in Lyons Falls NY this kit is available in .223 cal/5.56mm. Contained in a lightweight compact soft pack case. Package Contents: Otis Technology .223/5.56mm MPSR Cleaning Kit Otis Technology FG-556-MPSR: .223/5.56mm MPSR Cleaning Kit Black