Carlson's Remington 12ga Sporting Clay Improved Modified Choke Tubes, crafted from 17-4 heat-treated stainless steel, are precision-engineered for superior patterning compared to standard chokes. These tubes boast a 25% longer parallel section, resulting in more consistent patterns than typical chokes. Their extended design not only safeguards your barrel's end but also features knurling for swift, easy removal. The constriction is laser-engraved on each tube for convenient identification. Compatible with various shot types, including lead, copper-plated, nickel, hevi-shot, bismuth, tungsten, or steel, these choke tubes are versatile for different shooting needs.