This tube fits the following guns:
Akkar 12ga
Charles Daly 12ga (Current production Semi Auto and Pump)
Charles Daly (Made in Turkey) 12ga (Current production O/U)
H and R 12ga Excell Auto 5 (with threads at bottom of factory choke)
Legacy Sports 12ga Threads at bottom V-3
New England Firearms 12ga (Factory flush mount choke 2" long)
Remington 12ga 870, 1187, and 1100, V3
Remington 12ga V3
 
12ga Remington Anaconda Striker 0.670
 
Patternmaster Anaconda “STRIKER” (0.670”) has “Gas over Constriction Technology” within the patented “Coil Zone” made up of internal channels used to harness gas expelled from the ammunition. “Coil Zone” channels are spun in a negative twist to stabilize the wad for even, consistent patterns and keep the tube tight in the barrel. Anaconda “STRIKER” will throw an Extra Full pattern with distances out to 60 yards. This tube is safe and effective with non-toxic shot as well as lead. 
Note: Testing done by Ballistics Performance has determined that ammunition with velocity of 1550fps and below will achieve the best results with Patternmaster Tubes.
Not for use with slug ammunition.
NOT FOR USE WITH STEEL SHOT
Patternmaster’s 12ga Remington tubes will interchange with Remington 870 and 1100 (NOT 887); Chas Daly current Pumps and Semi-Autos, and Model 206; Chas Daly O/U made it Turkey; H&R Excell Auto; just to name a few. For more information about your shotgun interchange please see the firearm owner’s manual or contact the firearm manufacturer.
NOT RECOMMENDED FOR USE WITH REMINGTON MODEL 887 SHOTGUNS!