American Arms

Interchanges with Fausti/Traditions Shotguns.

Baikal

Interchanges with Standard Tru Choke.

Benelli 

(Current production-square threads) Interchanges with Beretta style thread .

Beretta 

(Current production)  Interchanges with Benelli  style thread .

Beretta  

(old style-no threads-uses muzzlecap)- No known interchange.

Beretta Optima 

Interchanges with Optima thread (Models 682E & DT10).

Beretta Optima Plus-

Interchanges with Optima Plus thread ( Model 391A Extrema).

Bernardelli

No known interchange.

Browning Invector

Interchanges with Winchester thread, Mossberg 500, & Weatherby.

Browning Invector Plus

Interchanges with  Winchester Super X2.

Charles Daly

Current production pumps and semi-autos interchanges with Remington style thread.

Charles Daly

Current production O/U, interchanges with Winchester style thread .

Churchhill 12Ga

Interchanges with Fabarm style thread, some models American Arms.

Fabarm

12 Ga interchanges with most Churchill  style thread.

Franchi

(Current production-square thread) Interchanges with Beretta/Benelli style.

Franchi

(Old style-V threads) Interchanges with Fran Choke style thread.

Ithica 

(Old style-fine threads) Interchanges with standard Tru choke style thread.

Ithica 

(New style 12Ga) Interchanges with Winchester style thread.

Ithica All 20 Ga. New Style

Interchanges with Tru Choke style thread.

Luger 

No known interchange.

Marrochi Golden Snipe Field O/U 

Interchanges with Browning Invector Plus style.

Miroku 

Interchanges with Winchester style thread.

Mossberg 500

Interchanges with Winchester style thread, Weatherby.

Mossberg 835

No Interchanges .

Remington  

Interchanges with current made Charles Daly.

Ruger Older Models

Interchanges with Winchester style thread (short chokes).

Ruger SC/Newer Model 

Interchanges with Ruger SC style threads (long chokes).

Savage

Interchanges with Winchester style threads & Mossberg 500.

Silma 

No known interchange.

Smith & Wesson

Interchanges with Winchester style thread.

Sako/Tikka 12Ga.

Interchanges with Browning Invector Plus style threads.

SIG Arms

No known interchanges.

SKB Short Style

Interchanges with Winchester style threads, Mossberg 500.

SKB Competition 

Interchanges with SKB competition style chokes.

Stoeger 2000 Semi-Auto

Interchanges with Beretta/Benelli style threads.

Traditions by Fausti

Interchanges with American Arms style thread.

Valmet 

No known interchanges.

Verona 

No known interchanges.

Weatherby 

Interchanges with Winchester style threads, Mossberg 500 .

Winchester 

Interchanges with , Mossberg 500 & Weatherby.

Winchester Super X2 and Supreme 

Interchanges with Browning Invector Plus styles.