Primos Tight-Wad Turkey Choke TUbe for 20 Gauge Invector Plus Hard on turkey heads, not your wallet. The Tight-Wad produces patterns that densely spread pellets into a 30" circle at 40 yards. No frills, just clean kills. This choke tube is CNC milled from chrome alloy steel. Shoots lead, copperplated lead, and HEVI SHOT. Install and remove without any tools. This Choke Tube features a .570 constriction