Real Avid Master Cleaning Station, AR15 Cleaning Kit, Deluxe Gun Mat With Set Of Cleaning Tools AVMCS-AR
Specifications:

Type
Size
Pieces
Bristle Type	Bronze/Nylon
Length
Includes
Tip Features
Thread Pattern
Case Material
Caliber or Gauge	223 Rem,5.56 NATO
Bore Diameter Start
Bore Diameter End