Browning Midas Browning 12 Gauge Modified Extended Stainless Steel Oxide 1130173

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: Brand: Browning Series: Invector-Plus™ Midas Grade Extended Gauge: 12 gauge Constriction: Modified Part Number (MPN): 1130173 UPC / Barcode: 023614000419 Hinterland Outfitters+3Buds Gun Shop+3GrabAGun+3 This choke tube is specifically designed for: Thread system: Browning Invector-Plus back-bored 12-gauge barrels only BOSQUE Outdoors+3browning.com+3GrabAGun+3 Not for use with: Shotguns marked Standard Invector or Invector-DS on the barrel. browning.com+2eBay+2 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: Material: 17-4 stainless steel choke body Exterior finish: Black oxide finish for a non-reflective, durable surface BOSQUE Outdoors+3Buds Gun Shop+3Ammunition Depot+3 Accent band: Laser-etched gold accent band near the muzzle end – the signature visual cue of the Midas Grade series Cormac Arms Outfitters+3browning.com+3Ammunition Depot+3 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: Extended beyond the barrel: Allows tool-free installation and removal; no wrench is required. tacticalsupplysource.com+3shop.oldglorygunsandammo.com+3Classic Firearms+3 Knurled or contoured end section: Provides improved grip when tightening or loosening the tube by hand (noted in several retailer spec sheets). reedsgunsandammo.com+1 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: Long taper design: Gradual internal constriction over a longer distance, intended to reduce pellet deformation and produce tighter, more consistent patterns compared to standard Invector-Plus tubes. browning.com+3shop.oldglorygunsandammo.com+3Classic Firearms+3 Minimum gap geometry: Tight manufacturing tolerances between the choke tube and barrel bore to minimize gas leakage and improve pellet flow. shop.oldglorygunsandammo.com+2choke-tube.com+2 High-resolution RMS finish: A smooth internal surface finish that helps reduce plastic wad buildup in the bore and inside the choke tube. Ammunition Depot+3Buds Gun Shop+3choke-tube.com+3 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 Brand: Browning Series: Invector-Plus Midas Grade Extended Gauge: 12 gauge Constriction: Modified (approx. 0.020" constriction) reedsgunsandammo.com+2BOSQUE Outdoors+2 Part Number: 1130173 UPC: 023614000419 Buds Gun Shop+2tacticalsupplysource.com+2 Material: 17-4 stainless steel Finish: Black oxide exterior Accent: Laser-etched gold accent band Design type: Extended choke tube (protrudes beyond barrel muzzle) Technology: Invector-Plus long taper design, minimum gap geometry, high-resolution RMS internal finish Magnolia Defense+3shop.oldglorygunsandammo.com+3browning.com+3 Compatibility: For Browning 12-gauge shotguns with Invector-Plus back-bored barrels Not for Standard Invector or Invector-DS barrels browning.com+2Cormac Arms Outfitters+2 Installation: Tool-free; extended design allows hand tightening/loosening, no wrench required tacticalsupplysource.com+3shop.oldglorygunsandammo.com+3Classic Firearms+3 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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