Tetra® Gun Prosmith™ and ValuPro™ III Cleaning Rods all use the industry standard 8-32 threading for most barrels, from .22 cal. to .50 cal.; a 5-40 threading for .17 cal. and .204 cal.; and a 5/16-27 size for shotguns, including 12, 20, 28 and 410 gauge. Firearm enthusiast …

When cleaning a bolt action rifle, use the Tetra® Gun ProSmith™ Universal Bore Guide to help guide the cleaning rod and attachment straight down the bore, whether using a brush, mop or jag. By doing so, you will prevent the rod from bowing, which will protect the bore from unnecessary …

Stuck choke tubes are caused by corrosion and the high stress of steel shot loads. The extreme temperature changes and pressure from repetitive shooting cause the choke tubes to seize. You can best prevent this by using a superior anti-seize lubricant, such as Tetra® Gun Grease. By treat …