reference guide

GUN MANUFACTURER	GUN MODELS	CHOKE TYPE
BENELLI	*ALL MODELS EXCEPT FOR SPORT II, NEW Super Black Eagle II and the NEW* M II.**	MOBILE CHOKE SYSTEM
BENELLI	NEW Super Black Eagle II, M II (Current Productions)	CRIO PLUS-CHOKE SYSTEM (Optima Plus Thread System) THIS GUN IS NOT BACK BORED!! Small bore version of the OPTIMA PLUS
BENELLI	SPORT II / SUPER SPORT/CORDOBA	CRIO-CHOKE SYSTEM (Optima Thread System) THIS GUN IS NOT BACK BORED!! Small bore version of the OPTIMA 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.
BERETTA NON-BACKBORED BARRELS	AL 390-391 URIKA, PINTAIL, 3901 686 ONYX PRO, 686 WHITE ONYX WHITEWING, BLACKWING, ULTRA LIGHT, 686 SILVER PIGEON, 687 SILVER PIGEON II, 687 SILVER PIGEON IV, 687 EL GOLD, 687 EELL DIAMOND PIGEON, 686 RINGNECK, 686 COVEY QUAIL	MOBILE CHOKE SYSTEM FACTORY MOBILECHOKE TUBES ARE FLUSH MOUNTED AND 2 INCHES (51MM) LONG.
BERETTA BACKBORED BARRELS	AL 391 TEKNYS FIELD GRADE, AL 391 XTREMA 3.5, AL 391 RINGNECK	OPTIMA CHOKE PLUS FACTORY OPTIMA-CHOKE PLUS AND OPTIMA CHOKE TUBES ARE 2 3/4 INCHES (70MM) LONG.
BERETTA BACKBORED BARRELS	AL 391 TEKNYS TARGET MODELS, DT-10 TRIDENT, 682 GOLD E, 687 SILVER PIGEON II, 687 EL GOLD PIGEON II, 687 EELL DIAMOND PIGEON SPORTING	OPTIMA CHOKE
BROWNING NON-BACKBORED BARRELS	A-5 MODELS	INVECTOR (WINCHOKE/ACCUCHOKE) FACTORY FLUSH MOUNTED CHOKE IS APPROX. 1.5" LONG.
BROWNING BACKBORED BARRELS	CITORI'S, BT-99, GOLD MODELS	INVECTOR PLUS FACTORY FLUSH MOUNTED CHOKE IS APPROX. 2 3/8" LONG (THERE ARE SOME MODELS THAT COME WITH EXTENDED CHOKES, THEY WILL BE LONGER)
CHARLES DALY	GAS AUTOS & PUMPS	REMCHOKE
CHARLES DALY	OVER-UNDERS	INVECTOR (WINCHOKE/ACCUCHOKE)
FRANCHI	ALCIONE SP, ALCIONE SX, ALCIONE SL SPORT, 612 SPORTING, MODEL 912, MODEL 612, MODEL 620, 48 AL FIELD & DELUXE	MOBILE CHOKE SYSTEM
ITHACA	SPORTING CLAYS GRADE, TRAP GRADE, TURKEYSLAYER STORM, WATERFOWLER STORM, CLASSIC MODEL	INVECTOR (WINCHOKE/ACCUCHOKE)
MAROCCHI	GOLDEN SNIPE FIELD OVER & UNDER	INVECTOR PLUS
MOSSBERG	ALL MODEL 500'S WITH SCREW IN CHOKES, MODEL 9200	INVECTOR (WINCHOKE/ACCUCHOKE)
MOSSBERG ULTI-MAG	835 PUMP AND NEW 935 SEMI-AUTO	MOSSBERG 835 UNLTI-MAG
NEW REMINGTON BACK-BORED GUNS	New 1100's, 105 CTI, Premier STS, Premier Field Grade & Upland	*New ProBore (back bored to .735) Threads are at the top of the barrel.**
REMINGTON	ALL non-current production guns.	REMCHOKE (threads are at the bottom of the choke tube)
RUGER	RED LABEL	Ruger Sport Choke
SKB	FOR SKB MODELS WITH THE AS PREFIX ON THE SERIAL NUMBER ONLY (585, 685, 785, 885-A, AND 85TSS)	SKB COMPETITION STYLE
SKB	FOR SKB MODELS WITH THE NS, NSG, & NA PREFIXES ON THE SERIAL NUMBERS ONLY. (1300, 1900, 3000, 385, 485, 505, 605, & 885-N)	INVECTOR (WINCHOKE/ACCUCHOKE)
RIZZINI		SAME AS VERONA LX
PERAZZI GEN 4		NOW AVAILABLE
STOEGER	2000 SEMI-AUTO'S	MOBILE CHOKE SYSTEM
STOEGER	CONDOR MODELS, UPLANDER	INVECTOR (WINCHOKE/ACCUCHOKE)
TRADITIONS	ALS 2100 SEMI-AUTOMATIC	BERETTA / BENELLI MOBILE CHOKE SYSTEM
VERONA	FOR MODELS THAT START WITH LX PRE-FIX	INTERCHOKE
VERONA	SEMI-AUTOMATICS / ALL MODELS WITH SX PRE-FIX	CALL US FOR DETAILS
WINCHESTER	MODEL 1300	INVECTOR (WINCHOKE/ACCUCHOKE)
WINCHESTER	SUPER X2 / X3 AND SUPREME'S	INVECTOR PLUS
WEATHERBY		INVECTOR (WINCHOKE/ACCUCHOKE)