Extreme Engineering Classic Spur – 1911 / 2011 Ignition Kit (5-Piece)

Traditional Spur Look • Match-Grade Fire-Control Performance

The Extreme Engineering Classic Spur Hammer 1911 Ignition Kit (5-Piece) blends timeless Commander-style design with modern competition-grade performance. Precision-machined from aerospace-grade steel, this ignition kit delivers fast lock time, exceptional durability, and long-term geometry stability. As a result, it is an ideal upgrade for serious 1911 and 2011 shooters who want classic styling without sacrificing performance.

Many factory ignition systems focus mainly on appearance. However, the Extreme Engineering Classic Spur Ignition Kit is engineered for speed, strength, and consistency. Because of this, your trigger feel stays clean, stable, and predictable through thousands of rounds.

✅ Why the Classic Spur 1911 Ignition Kit Outperforms Factory Parts

Most factory ignition components rely on basic carbon steel and shallow surface heat treatment. Unfortunately, this limits service life and speeds up wear on critical engagement surfaces. Over time, shooters often notice:

• Inconsistent trigger pulls

• Gritty or unstable breaks

• Geometry wear

• Slower lock time

• Trigger weight changes

In contrast, the Extreme Engineering Classic Spur 1911/2011 Ignition Kit is manufactured from a premium aerospace alloy originally developed for rocket booster engine applications. Because of this advanced material, the kit delivers:

• Superior impact resistance

• Outstanding wear properties

• Long-term geometry retention

• Reliable performance under extreme competition use

After heat treatment to 50–54 Rockwell C, the hammer achieves an exceptional balance of surface hardness and core strength, ensuring maximum service life.

✅ Classic Spur Design with Modern Lock-Time Speed – Ready-Out-of-the-Box Performance

• Delivers a clean 4-lb trigger pull out of the box

• With minor sear spring adjustment, achieves a consistent 3-lb competition pull

• Maintains stable trigger geometry without pull-weight drift

• Designed for ultra-fast lock time and precision shooting

Extreme Engineering components are 100% made in the USA and backed by a lifetime warranty against breakage, offering unmatched long-term value. Compared to imported ignition kits made with inconsistent steel and heat treatment, this kit delivers dramatically higher durability and consistency.

✅ Exclusive Thunder Mountain Custom Advantage

Only Thunder Mountain Custom includes a custom Standard Sear Spring with this ignition kit. This precision-tuned spring delivers:

• A cleaner break

• Lighter pull potential

• Improved consistency

• Better long-term reliability

Standard ignition kits simply do not include this upgraded sear spring.

⭐ What’s Included – Classic Spur 5-Piece 1911 Ignition Kit

🔹 Classic Spur Chamfered Ultra-Light Hammer

• Weight: Only 0.7 oz

• One of the fastest lock times available

• Heat treated to 50–54 Rockwell C

• Ultra-low mass improves trigger response and split times

• Fits:

  • Colt, Kimber, Springfield, STI, SV, Para,

🔹 Tactical Precision Sear

• Manufactured from the same aerospace alloy as Extreme Engineering premium hammers

• Heat treated to 44–46 Rockwell C

• Designed for:

  • Light trigger pull stability

  • Follow-down prevention

  • Long-term geometry retention

• Competition proven in match pistols nationwide

• Ideal for ultra-light trigger setups

🔹 National Match Disconnector

• Lightweight design improves:

  • Reset consistency

  • High-speed cycling reliability

  • Double-tap performance

• Optimized for fast competition pistols and endurance reliability

🔹 Thunder Mountain Custom Standard Sear Spring (Exclusive)

• Tuned for:

  • Crisp break

  • Stable light pull weights

  • Smooth trigger feel

• Outperforms standard factory sear springs commonly bundled with ignition kits

🔹 Wolff Precision Mainspring – Your Choice

Choose your preferred balance of trigger feel and ignition reliability:

• 15 lb

• 17 lb

• 19 lb

Wolff springs are industry-standard for consistent performance and long service life.

✅ Compatibility

Designed for 1911 and 2011 platforms, including:

• Springfield

• Colt

• Kimber

• STI

• SV

• Para

• Springfield Prodigy

• Custom 1911 / 2011 builds

✅ Important Fitment Notes

• Some pistols may require thumb safety fitting

• In select cases, a new thumb safety may be required for proper sear engagement

• Minor fitting may be required by a qualified pistol smith for optimal performance

✅ Built for the Serious 1911 / 2011 Owner

If you are building or tuning a match-ready pistol, the Extreme Engineering Classic Spur Ignition Kit delivers:

• Faster lock time

• Cleaner break

• Lighter, stable pull weights

• Long-term consistency

• Superior wear resistance

• Lifetime durability

Thanks to its aerospace-grade materials, precision machining, lifetime warranty, and exclusive Thunder Mountain Custom sear spring, this kit offers elite-level fire-control performance that holds up under hard use.