This tube fits the following guns:
Browning 12ga 525/625 Citori
Browning 12ga BPS
Browning 12ga BT-99 
Browning 12ga Cynergy
Browning 12ga Gold
Browning 12ga Maxus
Browning 12ga Silver
Ithaca 12ga Model 37 Plus
Marocchi 12ga Golden Snipe Field O/U
Sako/Tikka 12ga 
Winchester 12ga Model 101
Winchester 12ga Select 
Winchester 12ga Super X2
Winchester 12ga Super X2, Super X3
Winchester 12ga Super X4, SX4
Winchester 12ga Supreme
Winchester 12ga SXP
 
12ga Browning Invector Plus/Winchester SX3, SX4 Code Black Turkey .665
 
The Patternmaster Code Black Turkey uses a number of different technologies to achieve incredible down range energy at distance. We’ve worked hard to continue to develop a “hunting” pattern that performs like no other. We understand that sometimes your entire season can come down to a few more yards.
The Code Black Turkey is built from titanium infused 17-4 Stainless Steel and more than 100 years of combined experience. This American Made, aircraft quality steel is the best in the world and allows for unmatched performance and durability.
The Code Black Turkey technology uses a three-phase step down constriction to .665 as well as our proprietary canoe-porting... this combination of technologies shortens the shot-string by as much as 75% over constriction tubes.
*Ballistic Specialities recommends ammunition speeds below 1550 FPS for best results..
*Do not use this tube with slug ammunition.