Extended choke tubes for 12b ATA SP Shotguns.
These have Coloured rings on the external of the choke
Choke constriction is denoted on the side or by notches at the muzzle or on the outside of the choke
Notch number conversion/Ring colour
1 - Full - Silver
2 - 3/4 - Black
3 - 1/2 - Green
4 - 1/4 - Gold
5 - Skeet - Blue
0 - Cylinder - Blue
*Choke external ring colour is a suggestion for most orders, sometimes it can vary from ATA
