Solid aluminum jags with rubber O-rings are ideal for cleaning the bore of your gun without worrying about damaging the rifling. O-rings press patch firmly into bore surface for efficient cleaning action on powder, lead, copper, and plastic fouling. For use with patches, steel wool, and bronze wool. Shotgun and Black Powder jags are color coded; Rifle/Handgun jags are numbered for easy identification.
Sinclair, Issue:3B, Page:151
SPECS: Aluminum or brass with rubber O-rings. Male threads, 8-32 tpi, except .50 BP is 10-32 tpi male. Shotgun - Anodized, red (12 ga.), blue (20 ga.), and green (28 ga.). 5⁄16" -27 tpi male. Rifle/Handgun - Polished finish except .50 cal. Black Powder (BP) is anodized yellow.