This list is believed to be correct but is not guaranteed to be so. Manufacturers may change designs at any time without notification. In some cases there may be several different choke designs that have been used in the same model.  If you are not sure which choke fits your shotgun, please call for technical support. Never attempt to force a choke that does not screw in easily.

American Arms (Fausti Mfg.) : interchanges with Trulock’s American Arms style.

American Arms (Franchi) Mfg. Pre Beretta) : interchanges with Old Style Franchi (Franchoke) chokes

Antonio Zoli with S/N prefix below 238: .725 bore- interchanges with Trulock’s Antonio Zoli style

Antonio Zoli with S/N prefix of 238 and higher:.732 bore- No known interchange

BSA 12: interchanges with Trulock’s Beretta/Benelli style

BSA 20 gauge: interchanges with Trulock’s Benelli style

Exception-BSA Silver Eagle with serial # below 2018 uses Trulock’s Huglu style chokes

Baikal 12 and 20 gauge: interchanges with standard Tru-Choke.

Baikal 16 gauge: interchanges with Trulock’s Baikal 16 gauge.

Most Benelli 12 and 20 gauge Mobil design: Superseded and Current Production models:

SBE, M1, World Class, Nova, Super Nova, Sport, M3 and M4 [current production with trapezoidal threads] interchanges with Trulock’s Beretta/Benelli (Benelli standard Mobil) style.

M2 Tactical: Uses Trulock’s Crio Plus style

M4 Tactical: Uses Trulock’s Beretta/Benelli (Benelli standard Mobil) style

Benelli Cordoba, Super Sport and Sport II: Early Versions: Uses Crio Choke, a small-bore version of the Optima, interchanges with Trulock’s Crio style. Note: Sometime in the spring of 2006 Benelli USA began receiving Cordoba, Super Sport and Sport II models that use Crio Plus instead of Crio chokes.

Benelli 12 and 20 gauge Crio Plus design: SBE II, M2, (Some Montefeltro check picture above), Cordoba, Legacy, Sport ll, Super Sport, Ultra Light and Vinci: Uses Extended Crio Plus choke, a small bore version of the Optima Plus, interchanges with Trulock’s Crio Plus style.

Benelli: Pre Beretta Purchase [old style, has V threads] no known interchange.

Beretta Information

IF YOU ARE NOT SURE WHICH STYLE OF CHOKE YOUR BERETTA TAKES PLEASE LOOK AT IDENTIFICATION PHOTO’S ABOVE

Beretta 12 gauge: [Mobil Choke] interchanges with Trulock’s Beretta/Benelli style.

Beretta 20 gauge: [Mobil Choke] interchanges with Trulock’s Beretta style.

Beretta 28 gauge: interchanges with Trulock’s Beretta 28 style chokes

Beretta: [slip in, no threads, uses muzzle cap] call for information.

Beretta Optima: [used in 12 ga. competition guns] interchanges with Trulock’s Optima style.

Beretta Optima Plus: [used in some 12 ga field grade guns] interchanges with Trulock’s Optima Plus style.

Beretta Optima HP: [Used in the following SV10 Perennia, SV10 Prevail, A400 Xplor and UGB25 Sporting] Interchanges with Trulock’s Optima HP style

Bernadelli SX801L: interchanges with Trulock’s Verona SX style.

Black Diamond 12 gauge: [Mobil Choke] interchanges with Trulock’s Beretta/Benelli style

Browning Invector 12 and 20-standard bore diameters: [short tube, approximately 1.5″] interchanges with Trulock’s Win-Brn-Moss style.

Browning Invector 10, 16 and 28: interchanges with Trulock’s Invector style

Browning Invector Plus [.740 bore diameter] : interchanges with Trulock’s Invector Plus style.

Caesar Guerini 12 gauge: [Field Grade] interchanges with Trulock’s Fabarm style.

Caesar Guerini 12 gauge: [Target Grade with a s/n starting below 112] interchanges with Trulock’s Fabarm style

Caesar Guerini 12 gage: [Target Grade with a s/n starting with 112 or higher] These shotguns use Maxis Competition Chokes, No known interchange

Caesar Guerini 20 gauge: interchanges with Trulock’s Fabarm style

Caesar Guerini 28 gauge: No known interchange

Charles Daly: [current production pumps and semi-autos] interchanges with Trulock’s Remington style.

Charles Daly: [current production O/U (NOT SIDE-BY-SIDE)] interchanges with Trulock’s Win-Brn-Moss style.

Charles Daly Mdl. 106 20 ga: interchanges with Trulock’s Beretta 20 ga style.

Charles Daly S/S Field II [12 and 20 gauge]: interchanges with Trulock’s Beretta/Benelli style.

Century Arms/Kahn Centurion 12 gauge: interchanges with Trulock’s Beretta/Benelli style.

Century Arms/Kahn Centurion 20 gauge: interchanges with Trulock’s Huglu style

Century Arms/Kahn Arthemis 12 gauge: interchanges with Trulock’s Beretta/Benelli style.

Century Arms/Kahn Arthemis 20 gauge:  interchanges with Trulock’s Huglu style

Churchill 12 gauge: call for interchange information.

Connecticut Shotgun Co A-10 12 and 20 ga: interchanges with Trulock’s standard Tru-Choke.

CZ USA O/U 12 gauge 2005 and later: interchanges with Trulock’s Beretta/Benelli style

CZ USA O/U 20 gauge 2005 and later: interchanges with Trulock’s Huglu style.

FN-SLP 12 ga.: interchanges with Trulock’s Win-Brn-Moss style

Fabarm: 12 ga interchanges with Trulock’s Fabarm style.

Fausti: no known interchange

F.A.I.R.: (I Rizzini): interchanges with Trulock’s Verona LX style.

Franchi 12 gauge: Except Sporting SL O/U and Highlander [current production with trapezoidal threads] interchanges with Trulock’s Beretta/Benelli style.

Franchi 20 gauge: interchanges with Trulock’s Benelli style

Franchi 28 gauge: interchanges with Trulock’s Beretta 28 gauge.

Franchi Sporting SL O/U: Some if not all of these come with .732 (18.66mm) bores.  Uses an odd bore Beretta/Benelli style choke. This interchanges with Trulock’s Franchi Big Bore style chokes.

Franchi Highlander SXS: No known interchange.

Franchi Franchoke ( Pre Beretta Ownership): [old style, has V threads, not stub Acme threads and start about 1/8 inch from the top of the choke.] interchanges with Trulock’s Old Franchi style.

H & R 1871/N.E.F. 12 gauge: interchanges with Trulock’s Win-Brn-Moss style.

H & R 1871/N.E.F. 20 gauge: interchanges with Trulock’s Win-Brn-Moss style.

H & R 1871/N.E.F. 10 gauge: interchanges with Trulock’s Browning Invector 10 gauge.

H & R 1871 Pardner Pump 12 gauge: interchanges with Trulock’s Win-Brn-Moss style

H & R 1871 Excell Auto 5 12 gauge (Pre Remington Purchase): interchanges with Trulock’s Verona SX style.

H & R 1871 Excell Auto 5 12 gauge (Since Remington Purchase): interchanges with Trulock’s Remington style.

Hastings Choke Tube 1 (Old Style): interchanges with standard Tru-Choke

Hastings Choke Tube 2 (Current Version):  No known interchange

Huglu: [12 gauge] interchanges with Trulock’s Beretta/Benelli style.

Huglu: [20 gauge] interchanges with Trulock’s Huglu style-Note: The first [approx #] 200 of these guns that were imported into the USA take Mobil chokes not Huglu’s

ITHACA INFORMATION

WE RECENTLY RECEIVED A REPORT THAT ITHACA HAS CHANGED CHOKE DESIGNS ON THE 20 GAUGE GUNS.  AT THIS TIME WE ARE NOT SURE WHAT DESIGN OF CHOKE IS BEING USED AND WE DO NOT KNOW IF 12 GAUGE GUNS WERE CHANGED.  10/31/08

Ithaca 12 gauge: [old style, 44 TPI] interchanges with standard Tru-Choke.

Ithaca 12 gauge: [current production, 32 TPI] interchanges with Trulock’s Win-Brn-Moss style.

Ithaca 20 gauge ALL: interchanges with standard Tru-Choke 20 gauge chokes.

Lanber 12 gauge [Current]: interchanges with Trulock’s Lanber Style.

Lanber [Imported by American Arms]: interchanges with Trulock’s American Arms style

Legacy Sports Escort 12 gauge: interchanges with Trulock’s Beretta/Benelli style

Legacy Arms Pointer 12 ga. : interchanges with Trulock’s Beretta/Benelli style.

Legacy Sports Escort 20 gauge: interchanges with Trulock’s Huglu style

Legacy Sports/Silma 12 gauge O/U: no known interchanges

Laurona: There are two versions. One interchanges with Trulock’s American Arms style. The other has no known interchange

Marlin-L.C. Smith: interchanges with Trulock’s L.C. Smith style

Marocchi Golden Snipe Field O/U: interchanges with Trulock’s Browning Invector Plus style.

Maverick Arms Model 88: interchanges with Trulock’s Win-Brn-Moss style

Maverick Arms Model Hunter O/U 12 ga: interchanges with Trulock’s Beretta/Benelli style

Miroku: interchanges with Trulock’s Win-Brn-Moss style.

Mitchell Mauser 12 gauge: no known interchange.

Mossberg: [EXCEPT 835 & 935, SA-20 and Silver/Onyx series] interchanges with Trulock’s Win-Brn-Moss style.

Mossberg SA-20 20 gauge: interchanges with Trulock’s Benelli style

Mossberg 835 & 935: interchanges with Trulock’s Mossberg 835 style.

Mossberg Silver & Onyx Series 12 gauge: interchanges with Trulock’s Beretta/Benelli style

Mossberg Silver & Onyx Series 20 gauge: interchanges with Trulock’s Huglu style.

Mossberg Silver & Onyx Series 28 gauge: interchanges with Trulock’s Mossberg Silver Reserve 28 gauge.

New England Firearms 12 gauge: interchanges with Trulock’s Win-Brn-Moss style.

Remington [Except Spartan, Pro Bore and 10 ga.]: interchanges with Trulock’s Remington style.

Remington SP10 gauge: interchanges with Trulock’s Remington 10 ga. style

Remington Spartan 12 and 20 gauge: interchanges with standard Tru-Choke

Remington Spartan 16 gauge: interchanges with Baikal 16 gauge chokes.

Remington Pro Bore models: [New 2006] 1100 G3, 1100 12 Competition, Premier O/U, and 105CTI Automatic: interchanges with Trulock’s Pro Bore style.

Renato Gambo: no known interchange

Rizzini USA; interchanges with Trulock’s Verona LX style.

Rizzini [B] interchanges with Trulock’s Verona LX style.

Rizzini [I] interchanges with Trulock’s Verona LX style.

Rizzini: [E] no known interchange

Ruger 12 gauge PRE 1992: [short tube, approximately 1.5″] interchanges with Trulock’s Win-Brn-Moss style.

Ruger SC: [current production, approximately 2.450″] interchanges with Trulock’s Ruger Long style.

Ruger 20 ga PRE 1992 version: No known interchange.

Ruger 20 ga POST 1992 versions: interchanges with Trulock’s SC Ruger Long style

Sako/Tikka 12 gauge: Most of these shotguns will take Trulock’s Valmet style choke. Some will take Trulock’s Invector Plus style.

Savage Milano 12 & 20 ga: interchanges with Trulock’s Verona LX style

Sig Arms: [Aurora] interchanges with Trulock’s Verona LX style.

Sig Arms [SA3] no known interchange.

Sig Arms [SA5] : interchanges with Trulock’s Verona LX style

SKB standard: [short tube, approximately 1.5″] interchanges with Trulock’s Win-Brn-Moss style.

SKB Competition: interchanges with Trulock’s SKB Competition style.

Smith & Wesson 1000 (old style): interchanges with Trulock’s Win-Brn-Moss style.

Smith & Wesson 1000 12 ga. (Current Version starting in 2007, made in Turkey): interchanges with Trulock’s Beretta/Benelli style.

Smith & Wesson 1000 20 ga. (Current Version starting in 2007, made in Turkey): interchanges with Trulock’s Benelli style.

Smith & Wesson Elite series O/U 12 and 20 ga: No known interchange.

Stevens 411 12 gauge: interchanges with standard Tru-Choke.

Stevens 512 Gold Wing 12 ga, 20 ga. 28 ga.: interchanges with Trulock’s Beretta/Benelli style

Stoeger Coach 12 gauge: interchanges with Trulock’s Win-Brn-Moss style

Stoeger Condor 20 gauge O/U: Current production interchanges with Trulock’s Win-Brn-Moss style. Note: We have found a very few of these guns that take a Metric version of this choke. These will not interchange

Stoeger Condor 12 gauge O/U: interchanges with Trulock’s Win-Brn-Moss style.

Stoeger Luger O/U: interchanges with Trulock’s American Arms style.

Stoeger Single Barrel: interchanges with Win-Brn-Moss style.

Stoeger Uplander: side-by-side interchanges with Trulock’s Win-Brn-Moss style.

Stoeger 2000 Semi-Auto: interchanges with Trulock’s Beretta/Benelli style.

Stoeger P-350 Pump: interchanges with Trulock’s Beretta/Benelli style

Stoeger STF 3000: interchanges with Trulock’s Win-Brn-Moss style

Thompson Center Encore: interchanges with Trulock’s Win/Brn/Moss style.

Traditions by Fausti 12 gauge: interchanges with Trulock’s American Arms style.

Traditions by Fausti 20 gauge: interchanges with Trulock’s American Arms style.

Traditions Semi-Auto ALS 2100: 12 ga. only interchanges with Trulock’s Beretta/Benelli style.

Traditions Semi-Auto 20 gauge: interchanges with Trulock’s Benelli style.

Tri-Star Phantom Field: interchanges with Trulock’s Beretta/Benelli style.

Tri-Star Phantom HP: no known interchange.

Tri-Star Silver Series: interchanges with Trulock’s American Arms style.

Tri-Star Viper 3in 12 and 20 ga: interchanges with Trulock’s Beretta/Benelli (Mobil) style.

Tri-star Viper 3.5 in 12 ga: interchanges with Trulock’s Crio Plus style

Valmet: interchanges with Trulock’s Valmet style.

Verona LX O/U [Except 980]: interchanges with Trulock’s Verona LX style

Verona 980O/U: Interchanges with Trulock’s Antonio Zoli style

Verona SX Auto Loader: interchanges with Trulock’s Verona SX style.

Weatherby- Includes D’Italia: interchanges with Trulock’s Win-Brn-Moss style.

Winchester: [1200, 1300, 1400, 1500 and Ranger, Standard Winchester chokes] interchanges with Trulock’s Win-Brn-Moss style.

Winchester Model 59: no known interchange

Winchester Super X2: [Except Practical Mark I and II] interchanges with Trulock’s Browning Invector Plus style.

Winchester Super X2 Practical Mark I and II [standard bore]: interchanges with Trulock’s Win-Brn-Moss style.

Winchester Supreme [.740 bore diameter]: interchanges with Trulock’s Browning Invector Plus style.

Winchester Select [.740 bore diameter] : interchanges with Trulock’s Browning Invector Plus style

 ALL COMPANY AND TRADE NAMES ARE REGISTERED TRADEMARKS OF THE ABOVE LISTED COMPANIES.

 Updated 12/03/10 

Trulock Tool Division – Whigham Enterprises Inc.
113 Drayton Street
PO Box 530
Whigham GA 39897
Phone:  (229) 762-4678