Fine-tune your shotgun’s pattern density for longer presentations and versatile field use with the Browning Invector-DS Improved Modified Flush Choke Tube for 12 gauge shotguns. Sitting in the sweet spot between Modified and Full, Improved Modified (IM) is a favorite constriction for shooters who want tighter patterns without going all the way to Full—making it a strong choice for sporting clays, trap-style targets, and hunting situations where distance stretches and pattern control matters. Built from stainless steel with a durable chrome finish and designed for a clean flush-fit profile, the Browning 1133263 (UPC 023614373469) delivers OEM-quality fit and dependable performance for Browning shotguns that use the Invector-DS choke system.
If you’re searching for a Browning Invector-DS Improved Modified choke 12 gauge, 1133263, or 023614373469, this is the exact choke tube designed to match those keywords and help you dial in pattern performance with confidence.
Invector-DS Choke System: Use the Right Browning Platform
Browning’s Invector-DS system is a specific choke platform and is not the same as standard Invector or Invector-Plus. Correct choke system match is essential for proper fit and safe, consistent use.
Why Invector-DS matters:
Proper threads and secure seating in DS-compatible barrels
Consistent alignment that supports repeatable patterns
OEM-designed fit for Browning shotguns built around DS
Less trial-and-error compared to mixing choke systems
Before purchasing, confirm your shotgun is Invector-DS compatible—choke systems are not interchangeable.
Improved Modified: The “Reach” Constriction Without Full Tightness
Improved Modified (IM) is a popular choice when you need extra pattern density at longer distances but still want a bit more forgiveness than a Full choke. It’s often favored for:
Sporting clays targets that are consistently longer
Trap shooting where distance and pattern density matter
Hunting scenarios with longer shots and tighter pattern needs
Shooters who want a choke that bridges Modified and Full
If you’re looking for that “one step tighter” performance to break more distant birds, IM is often the answer.
Flush Fit Design: Clean Profile, Smooth Handling
This choke tube is flush-fit, meaning it sits even with the muzzle for a streamlined, factory-clean look. Flush chokes are a great option for shooters who:
Prefer a traditional appearance
Want less snagging in cases, sleeves, or brush
Like simple choke changes without extended protrusion
Want performance upgrades without changing the shotgun’s silhouette
Flush fit keeps your shotgun sleek while still letting you tune your patterns precisely.
Stainless Steel Construction + Chrome Finish: Durability You Can Count On
Made from stainless steel and finished in chrome, this Browning choke tube is built to resist corrosion and stand up to repeated use—especially valuable for hunters and high-volume clays shooters.
Benefits of stainless + chrome:
Excellent resistance to rust and corrosion in wet conditions
Easier cleaning after heavy shooting sessions
Durable material for repeated choke swaps and long-term use
Reliable performance for season-after-season shooting
If your shotgun sees rain, humidity, or frequent range time, premium materials pay off.
Ideal Applications: Clays, Trap, and Distance-Oriented Field Use
The Browning Invector-DS 12 gauge Improved Modified flush choke is a strong fit for:
Sporting clays shooters facing longer presentations
Trap shooters who want dense, consistent patterns
Upland or waterfowl hunting where shots tend to be longer (always follow local regulations and pattern-test)
Building a choke set that covers a wide range of distances
Shooters who prefer OEM Browning DS tubes for compatibility and peace of mind
IM is often the choke that helps you “reach out” without losing versatility.
Why Choose OEM Browning Invector-DS Chokes?
Many shooters choose OEM Browning choke tubes because they’re built to match Browning’s DS platform precisely, which can offer:
More predictable fit and compatibility
Consistent machining and finish standards
Factory-correct appearance and performance expectations
Reduced uncertainty compared to generic choke options
If your shotgun is DS-equipped, an OEM DS choke is the simplest, most confidence-inspiring route.
Product Details for Search and Verification
Brand: Browning
Choke System: Invector-DS
Gauge: 12 Gauge
Constriction: Improved Modified (IM)
Fit: Flush
Material: Stainless Steel
Finish: Chrome
Part Number: 1133263
UPC: 023614373469
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…this is the exact choke tube designed to match those searches.
For Browning shotgun owners who want tighter, more distance-capable pattern performance without going all the way to Full, the Browning Invector-DS 12 Gauge Improved Modified Flush Choke (1133263) delivers OEM-quality fit, durable stainless steel construction, and a corrosion-resistant chrome finish—ideal for longer clays presentations, trap shooting, and distance-oriented field use where pattern control matters.
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