Browning 1130305 Standard Invector 20 Gauge Cylinder Flush 17-4 Stainless Choke Tube

The Browning Standard Invector choke tube is a flush-mount replacement choke designed for 20 Gauge Browning shotguns equipped with the original Standard Invector choke system. Browning part number 1130305 is precision-machined from highly polished 17-4 stainless steel for excellent pattern uniformity, long-term durability, and corrosion resistance in the field.

This Cylinder constriction choke delivers zero constriction for a true cylinder bore, producing the most open pattern available in the Standard Invector line. The flush-fit design keeps the tube seated inside the muzzle for a clean, snag-free profile. It is well suited for upland bird hunting, close-range clay shooting, and general-purpose use at recommended distances of roughly 20 yards.

This choke is approved for use with steel, lead, and non-toxic shot loads, allowing it to be paired with modern waterfowl-approved ammunition as well as traditional lead upland loads. The tube is not ported. Sold as a single choke tube; a multi-purpose addition to any Browning Standard Invector 20 gauge shotgun.