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Expedition 4 6400/360 Compass by SILVA
Expedition 4 6400/360 Compass by SILVA Expedition 4 6400/360 Compass by SILVA Expedition 4 6400/360 Compass by SILVA

Expedition 4 6400/360 Compass by SILVA

🧭 SILVA Expedition 4 Compass (6400/360 MS Model)

Military-Grade Precision in the Palm of Your Hand

Graduated in MILS & Degrees | Southern Hemisphere Calibrated | Waterproof | 5-Year Warranty

Designed for elite performance in the field, the SILVA Expedition 4 6400/360 Compass is the trusted tool for military professionals, tactical trainers, cadets, and serious navigators requiring accuracy, durability, and reliability in the most demanding environments. With its dual MILS and degree graduations, this full-size baseplate compass is purpose-built for advanced land navigation, military training exercises, and field operations—day or night, anywhere in the Southern Hemisphere.


🔍 Built for Tactical Accuracy and Field Use

Key Feature What It Means for You
🎯 6400 MIL + 360° Graduations Enables precise angular calculations for military rangefinding and target location
🧭 SILVA 1-2-3 System Intuitive and proven navigation system ideal for map-based and field orientation
🔍 Magnifying Lens Enhances map reading for pinpoint accuracy
🌙 Luminous Markings (Everglow) After activation by daylight or torchlight, glows for up to 4 hours for night operations
🧪 Rubber Friction Feet Prevents slippage during detailed map work
🧵 UTM Plotting Scales & GPS Positioning Tools Includes Romer scales for 1:25k, 1:40k, and 1:50k maps—essential for precise positioning
🌦️ Rugged & Weatherproof Waterproof to 100m (IP68), shock resistant, and rated for -40°C to +60°C

🧰 Detailed Specifications

Specification Detail
Model SILVA Expedition 4 – MS (Southern Hemisphere calibrated)
Graduations 6400 MILS (outer ring), 360° (inner capsule)
Resolution Degrees: 2° / MILS: 50
Accuracy ±1° (17.8 mils)
Declination Adjustment Inside capsule
Magnifier Yes
Map Scales mm, inches
UTM Plotting Scales 1:25k, 1:40k, 1:50k
Settling Time ±3°: 2.7 sec / Full rest: 5 sec
Waterproof Rating IP68 – submersible to 100+ metres
Impact Resistance 30g shock resistance & 1.5m drop-rated
Altitude Tolerance Operates at 5000m @ -15°C
Operating Temp Range -40°C to +60°C
Material Lightweight, durable acrylic
Size 126 mm × 60 mm × 10 mm
Weight 36 grams
Warranty 5 years against defects in manufacture or materials

🔬 What Are MILS—and Why Do They Matter?

MILS (Milliradians) divide a circle into 6400 graduations, offering more precision than standard 360° compasses.
Military professionals use MILS for estimating distance, fire correction, and angular measurement:

If two objects appear 100 MILS apart at 1000m, they are approximately 100m apart on the ground.
Perfect for target acquisition, tactical movement, and artillery coordination.


🪖 Ideal For:

  • 🪖 Military & Defence Personnel

  • 🗺️ Army Cadets & Outdoor Education Programs

  • 🔭 Surveyors & Field Engineers

  • 🏕️ Adventurers & Expeditions in Remote Terrain

  • 📚 Navigation Instructors & Orienteering Leaders


✅ What’s Included:

  • ✔️ SILVA Expedition 4 Compass – MS calibrated

  • ✔️ Detachable lanyard

  • ✔️ Instruction Manual

  • ✔️ 5-Year SILVA Warranty


🇦🇺 Made for Southern Explorers

All SILVA compasses we stock are MS models, perfectly balanced for navigation in the Southern Hemisphere—making them ideal for Australia, New Zealand, Papua New Guinea, and southern latitudes around the world.


🚚 Free Shipping Australia-Wide

Enjoy fast, free delivery with standard parcel post across Australia.


🛒 Ready to Lead Your Next Mission

From military precision to wilderness navigation, the SILVA Expedition 4 6400/360 Compass delivers rock-solid reliability in the world’s toughest environments. When accuracy matters most—trust the tool that’s trusted by professionals.

🎯 Add to cart now and navigate with confidence.




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