Choke Tube Guide

CRIO® Plus Choke

Models that use this choke pattern:

  • 18i Synthetic
  • 18i Deluxe
  • 18i Waterfowler Models
  • SORIX

CRIO®. The trademark CRIO® is a registered trademark of Benelli Armi Spa

Suggested aftermarket choke tube manufacturers: Briley, Carlson’s, Kicks, Muller Choke Tubes and Trulock.

Beretta/Benelli Mobil Choke

Models that use this choke pattern:

  • PA-459 (all)
  • SA-459 (except Turkey Xtra Green)
  • SA-459 Turkey Mothwing Spring Mimicry (Discontinued Model)
  • SA-08 (28 Gauge only)
  • Element (28 gauge only)

Suggested aftermarket choke tube manufacturers: Briley, Carlson’s, Kicks, Muller Choke Tubes and Trulock.

IMC (Integral Multi Choke)

Models that use this choke pattern:

  • SA-08 (12 & 20 gauges only)
  • PA-08 (all)
  • SA-459 Turkey Xtra Green
  • Orion
  • Element (12 & 20 gauges only)

The IMC choke tube thread pattern is compatible with the following choke tube patterns: Browning Invector (not Plus), Mossberg Accu-Choke and Win-Choke.

Suggested aftermarket choke tube manufacturers: Briley, Carlson’s, Kicks, Muller Choke Tubes and Trulock.

Yildiz Choke System

Models that use this choke pattern:

  • Orion SxS (all)

Suggested aftermarket choke tube manufacturers: Briley, Kicks, Muller Choke Tubes and Trulock.

The Use of Slugs

Smooth bore barrels with choke tubes should have “Cylinder Choke” tubes installed when using Foster or Bernneke style rifled slugs. A “Cylinder Choke” will provide the best accuracy. Any choke with constriction of .020″ or more can result in damage to the barrel. Our “Improved Choke” tubes have a constriction of .013″ and therefore may be used with rifled slugs; however, accuracy may be compromised. Weatherby recommends slugs only be fired using a non-ported cylinder choke.

At no time should you shoot without a choke tube installed as this may cause damage to the choke tube threads in the barrel.

Choke Tube Identification

Choke tubes can be identified by the number and placement of small notches found on their muzzle (non- threaded) ends.

OExtra Full
IFull
IIImproved Modified
IIIModified
IIIIImproved Cylinder
IIIIISkeet
IIIIIICylinder
I-ISC I
II-IISC II