These precision rifled choke tubes are made of high-strength 304 stainless steel. Each choke tube protrudes 0.625 to 1.3 inches from the end of the barrel, depending on the type of firearm for which the choke was specifically designed.

• Right-hand barrel twist of 1 in 35
• Groove diameter of 0.730 inch in 12-gauge
• Matt black finish

If you're looking for improved accuracy from a smooth-bore barrel, these slim choke tubes will enhance your groups.