Pro-Shot Suppressor Brush 223 Rem5.56 NATO. 56 NATO - Suppressor Cleaning Brush Helps keep your suppressor operating in top performance. For use on 5.56mm/223 Rem rifles that attach to the host weapon via a SureFire muzzle device. Includes- SureFire SOCOM series SOCOM series 2 Legacy Warden and other suppressors less than 6". Specifications for Pro-Shot SPR-BRUSH Suppressor Brush 223 Rem5.56 NATO: Manufacturer: Pro-Shot Quantity: 1 Caliber: 5.56x45mm NATO Gun Type: Rifle Package Contents: Pro-Shot SPR-BRUSH Suppressor Brush 223 Rem5.56 NATO Pro-Shot SPR-BRUSH Suppressor Brush 223 Rem5.56 NATO