FEATURES-12 gauge-Modified-Nickel chrome moly-Extends beyond end of barrel for easy removal and even tighter patterns-Proprietary differential banded gas seal eliminates residue build up and makes chokes easy to remove and install-Integrated spring suspension holds the seal tight, yet allows expansion against the barrel wall for a perfect fit and a smooth transition for the shot column entering the choke-Gas is controlled at the interface between choke and where it seats in the bore-From skeet to full choke, patterns tighten consistently and reliably Main Features Gauge: 12 Gauge Finish: Chrome Weight: 3.20 oz Other Features Approved: Steel,Lead,Non-Tox Choke Configuration: Invector-DS Choke/Id: MODIFIED Chokes Included: 1 Configuration: Invector-DS Constriction Diameter: .020 Constriction Type: Modified Constrictiondiameter: .020 Dimension: 1.20 X 4.95 X 8.25 Firearm Fit: Browning Flush Or Extended: EXTENDED Height: 1.2000 Length: 8.2500 Material: Stainless Steel Model: Invector-DS Other Features: LONGER THAN COMPETITORS' TUBES Recommended For: 45 yds Style: Extended Thread Pattern: INVECTOR DS Type: Extended Width: 4.9500 Part Number: 1134273 UPC: 023614373537

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