STI 2011 9/38/BUL Armory | Brass | Double Stack Open Magazine Base Pad

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STI 2011 Brass Magazine Base Pad - Open Division | 45+ Grams Weight Advantage

Add 45+ grams of recoil-reducing weight per magazine while gaining 40% more grip surface for lightning-fast reloads. Our precision-machined brass base pads are the choice of Open Division champions, transforming STI 2011, Staccato, and Bul Armory magazines into perfectly weighted competition tools that drop free instantly and insert positively every time.

Why Open Division Champions Choose Our Brass Base Pads:

  • 45-50 Grams Added Weight - Substantial brass construction dramatically reduces muzzle flip
  • 40% Larger Grip Surface - Enhanced control during speed reloads
  • Universal 9mm/.38 Super - Works with both calibers in 170mm magazines
  • Drop-Tested Durability - Survives thousands of concrete drops
  • Perfect Weight Distribution - Lowers center of gravity for faster insertion
  • IPSC/USPSA Legal - Open Division approved worldwide
  • Direct Replacement - No magazine modifications required

Technical Specifications:

Material Solid C360 Brass
Weight Added 45-50 grams per pad
Compatibility STI 2011, Staccato, Bul Armory
Caliber 9mm and .38 Super
Magazine Type 170mm Open Division
Finish Options Black, Gold Plated, Chrome Plated
Installation 5 minutes, tool-free
Division Legal IPSC/USPSA Open Division

The Open Division Weight Advantage Explained:

In Open Division, every gram counts. Our brass base pads transform your magazine dynamics:

  • 📊 Recoil Reduction: 45g added weight = 15-20% less muzzle flip
  • 📊 Faster Drops: Added weight ensures positive magazine ejection
  • 📊 Quicker Insertion: Lower center of gravity guides magazine home
  • 📊 Consistent Feel: Matched weights across all magazines
  • 📊 Impact Protection: Brass absorbs drops better than aluminum

Perfect For:

  • 🎯 IPSC/USPSA Open Division competitors
  • 🎯 3-Gun Open shooters
  • 🎯 Speed shooting disciplines
  • 🎯 Anyone seeking maximum recoil control
  • 🎯 Building matched magazine sets

⚡ Build Your Complete Magazine System:

Create the perfect magazine setup for your shooting style:

Complete Your Open Division Race Gun:

Installation Instructions:

  1. Unload magazine completely - verify chamber empty
  2. Depress retaining plate through witness hole
  3. Slide factory base pad off magazine body
  4. Remove spring and follower (note orientation)
  5. Install brass base pad in reverse order
  6. Ensure retaining plate clicks securely
  7. Function test with snap caps

💡 Pro Tips from Open Division Champions:

  • "Number your magazines" - Engrave numbers on pads for consistent practice
  • "Mix brass and aluminum" - Different weights help identify magazine types by feel
  • "Color code your loads" - Black for major, gold for minor power factor
  • "Use thread locker" - Blue Loctite on retaining screws prevents loosening
  • "Match your weights" - Keep all competition mags within 5g of each other

Frequently Asked Questions:

Q: How much weight does each brass base pad add?

A: Each pad adds 45-50 grams. A typical 170mm magazine with brass base pad weighs approximately 200g empty.

Q: Will these fit STI DVC or newer Staccato magazines?

A: Yes, compatible with all STI 2011 variants including DVC, Staccato, and legacy STI magazines.

Q: Can I use these in Limited Division?

A: These are for 170mm Open Division magazines. Limited Division typically restricts to 140mm magazines.

Q: Which finish is best?

A: Black is most popular for durability. Gold/chrome offer visibility for magazine identification.

Q: Do these require magazine tuning?

A: No tuning required - direct replacement. However, always function test after installation.

Q: How many should I buy?

A: Most Open shooters run 4-6 magazines. We recommend matching base pads across all competition magazines.

⚠️ Important Compatibility Notes:

  • ✅ Compatible: STI 2011, Staccato (all models), Bul Armory double-stack
  • ✅ Calibers: 9mm and .38 Super
  • ✅ Magazine length: 170mm Open Division (NOT 140mm Limited)
  • ❌ NOT compatible: Single-stack 1911 magazines
  • ❌ NOT compatible: Glock, CZ, Tanfoglio magazines

📦 Package Options & Bulk Pricing:

  • Single Base Pad - $44.99 (try before you buy)
  • 3-Pack Bundle - Save 10% (contact for pricing)
  • 5-Pack Bundle - Save 15% (complete match setup)
  • 10-Pack Bundle - Save 20% (club orders welcome)

Why Boss Components:

  • 🏆 Competition Proven - Used by Australian Open Division champions
  • 🏆 Precision Manufacturing - CNC-milled to ±0.005" tolerances
  • 🏆 Australian Stock - Ships within 24 hours
  • 🏆 Expert Support - Competitive shooters on staff
  • 🏆 30-Day Guarantee - Full refund if not satisfied

📦 Shipping Information:

  • ✈️ In Stock: Ships within 24 hours
  • 🇦🇺 Australia: Express 1-3 days
  • 🌏 International: Philippines 5-7 days, USA 7-10 days
  • 📍 Ships from Adelaide, South Australia

⭐ Join thousands of Open Division shooters who've discovered the brass advantage. Order your STI 2011 brass base pads today and feel the difference in your next match!

Orders are typically dispatched within 24–48 hours on business days (Mon–Fri, excluding public holidays). All shipments include tracking details once dispatched.

Estimated Delivery Times

  • Australia: Express 1–3 business days, Standard 3–7 business days (metro vs. regional may vary).
  • International: Options shown at checkout; all orders shipped with tracking.

Please note that delivery times are estimates and may vary depending on the carrier or location. Retain packaging and contact us if you experience any transit issues.

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STI 2011 9/38/BUL Armory | Brass | Double Stack Open Magazine Base Pad - Boss Components - 2011 - 2011 brass
STI 2011 9/38/BUL Armory | Brass | Double Stack Open Magazine Base Pad - Boss Components - 2011 - 2011 brass
STI 2011 9/38/BUL Armory | Brass | Double Stack Open Magazine Base Pad - Boss Components - 2011 - 2011 brass
STI 2011 9/38/BUL Armory | Brass | Double Stack Open Magazine Base Pad - Boss Components - 2011 - 2011 brass

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