Minimum gap geometry and high-resolution RMS interior finishes reduce shot deformation. The choke constriction is laser marked, in a color coded band, so there is no need to disassemble the choke to verify size. The long tube with hidden key slots extends beyond the length of the muzzle. Knurled grip band speeds up installation and removal. Helical fluted diffusion spreader tubes provide a more open shot than cylindrical.
Please note that you can shoot steel through our 17-4 stainless steel chokes, Cylindrical through Improved Modified only. Please see table for lead to steel conversion.