Triple Shot Technology. TST is a series of three graduated rings in the parallel section of the choke that allow a more gradual transition from the shotgun bore to the final constriction that conveys a host of benefits to the shooter like reduced pellet deformation a shortened shot string and less flyers. These choke tubes are ported to help reduce muzzle jump and recoil.
BIOAMMO LS Target Shotgun Ammo 12 ga. 1 oz. 8 Shot Lead 25 rd.
$14.48 
MTM Case-Gard ST1240 Shotshell Tray Black 12 Gauge Shotgun 50rd Polypropylene
$6.80
Carlson’s Choke Tubes 13399 Buckshot Remington Rem Choke 12 Gauge Ported 17-4 Stainless Steel
$54.05
