The Browning Midas 12 Gauge Modified Extended Choke Tube, Stainless Steel with Black Oxide Finish (1130173, UPC 023614000419) is an Invector-Plus™ Midas Grade choke engineered to deliver tighter, more consistent patterns for 12-gauge Browning shotguns. Designed as an extended, modified constriction tube, it combines long taper Invector-Plus technology, precision stainless steel construction, and a black oxide exterior with a laser-etched gold accent band. browning.com+2Palmetto State Armory+2
Model Identification and System Compatibility
Catalog and inventory data for this choke tube typically include:
This choke tube is specifically designed for:
Ensuring the barrel is marked “Invector-Plus” is essential for proper fit and safe operation.
Construction, Materials, and Finish
The Browning Midas 1130173 choke is built from high-grade stainless steel, often specified as 17-4 stainless, chosen for its strength, hardness, and corrosion resistance in shotgun applications. Classic Firearms+2reedsgunsandammo.com+2
Key construction details:
The steel composition and treatment provide structural integrity under repeated firing with both lead and non-toxic shot types, within Browning’s published ammunition guidelines. BOSQUE Outdoors+1
Extended Profile and Handling Features
This Midas Grade choke is an extended pattern design, meaning it protrudes beyond the barrel muzzle:
The extension also gives engineers more internal length to implement the long taper constriction, contributing to pattern consistency.
Invector-Plus Long Taper Technology and Pattern Characteristics
Midas Grade choke tubes use Browning’s Invector-Plus long taper choke tube technology, designed to provide smoother constriction and improved pattern uniformity:
Browning and retailer specifications often describe the Midas series as producing tighter patterns than standard Invector-Plus choke tubes, making them well suited to demanding clay and field applications. Buds Gun Shop+2shop.oldglorygunsandammo.com+2
For the modified constriction specifically, some spec sheets list approximate performance:
Choke ID / constriction: Modified, around 0.020" constriction in 12 gauge BOSQUE Outdoors+1
Pattern density range: Often described generically as mid-range performance suitable for distances out to approximately 40–45 yards, depending on load and conditions. BOSQUE Outdoors+1
Actual pattern results will depend on specific ammunition, barrel, and environmental variables.
Intended Applications and Ammunition Compatibility
Retailers commonly position the Browning Midas 1130173 choke as a workhorse tube for sporting and hunting:
Use cases:
Sporting clays, trap, skeet, and other clay target disciplines Palmetto State Armory+1
General upland bird hunting and mid-range field shooting
Shot types: Approved by Browning for use with steel, lead, and many non-toxic shot types, following Browning’s choke and ammo guidelines. BOSQUE Outdoors+2Ammunition Depot+2
The modified constriction offers a balance between pattern spread and density, making it a common choice for all-around 12-gauge applications in an Invector-Plus system.
Dimensions, Weight, and Form Factor
Published specs (which may vary slightly by source) include:
Gauge: 12 gauge
System: Invector-Plus, extended
Choke ID: Modified
Overall style: Extended tube, not flush with the muzzle
Weight: Approx. 4.8 oz in many listings reedsgunsandammo.com+1
The extended design adds a small amount of length to the barrel assembly but also delivers more internal taper and easier handling.
Technical Specification Summary
Browning Midas 12 Gauge Modified Extended Choke Tube – Stainless Steel / Black Oxide – 1130173
By pairing Invector-Plus long taper engineering with a 17-4 stainless steel body, black oxide finish, and extended modified constriction, the Browning Midas 12 Gauge Modified Extended Stainless Steel Oxide Choke Tube (1130173, Invector-Plus) offers a technical, OEM-grade solution for Browning 12-gauge shooters looking for tighter, more consistent mid-range patterns and convenient, tool-free choke changes on compatible Invector-Plus barrels.
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