Carlsons Flush Mount Choke Tube 12 Gauge Improved Modified Invector - 17-4 Stainless Steel

The Carlsons Flush Mount Choke Tube is a precision-machined 12 Gauge shotgun choke in Improved Modified constriction, designed to thread directly into any shotgun fitted with the standard Winchester Invector choke pattern. The flush-mount profile keeps the choke inside the barrel for a clean, snag-free muzzle that won't interfere with bead sights or low-mounted optics.

This choke is CNC milled from solid 17-4 stainless steel and heat-treated for hardness and corrosion resistance, giving it the same tough build Carlsons uses across its choke lineup. The constriction measures .705" in diameter, making it a versatile mid-range choice for upland bird hunting, trap, and general field use with lead shot.

Because Winchester, Browning Invector (not Invector Plus), Mossberg, Savage, and Weatherby all share the same standard Invector thread pattern, this choke drops into any of their compatible 12 gauge barrels. Made in the USA and sold as a single choke tube ready to install.