(14 customer reviews)


In stock



Military Round Protractor #7

The only known BACK-UP of the GPS when it malfunctions is your ability to use a military protractor, map and sighting compass.

The RM #7 and #21 are the only models with a printed formula and a diagram to align map grid north to match the compass magnetic north.  Protractors without the conversion formula will provide a reading that is off the exact grid coordinate position.

The GPS will not penetrate sandstorms, rainstorms, snowstorms, smoke, structures, forest canopies, and thick cloud cover.

GPS readings are distorted during thunderstorms, electronic interferences and when bombing support is very close on enemy positions.

It can be jammed and detected when near or behind enemy lines.  Moisture is a common malfunction of the GPS.

Don’t let yourself be caught relying solely on electronics or batteries that can fail you. Always keep your land navigation skills fresh by practicing with a map, compass and military protractor.


  • 5″ Circle, includes string
  • 1:25k, 1:50k, 1:100k UTM/MGRS scales
  • GM Angle Conversion (LARS) printed on unit
  • GTA 5-2-12 (2006)
  • MILS and Degree edge scales

Are these durable?

Yes. Flexible, but not flimsy. Perfect for long term use with accurate ticks.

What's the difference between the square and round version?

Other than the shape, they function the same.

Does this have a distance scale?

Yes. 2km at 1:25k and 4km at 1:50k


  1. William Comeau (verified owner)

    An awesome addition to my RIR notebooks and maps.

  2. Anonymous (verified owner)

    Awaiting time for practicing

  3. John D. (verified owner)

    made for easy conversion !

  4. Jeffrey Gilpatric (verified owner)

    Was just what I was lookjng for. An upgrade to my old protractor.

  5. Robert M. (verified owner)

    NIce product

  6. Will J. (verified owner)

  7. Chad (store manager)

    Best protractors you can get! Plus, they come in round and square just in case you need to get your ninja-Nav on…around a corner.

  8. John C. (verified owner)

  9. Brooks Frederick (verified owner)

  10. Jacob Treichel (verified owner)

  11. Rod Yewell (verified owner)

  12. Steven Wood (verified owner)

  13. Mark (verified owner)

  14. CHRIS GROSECLOSE (verified owner)

    Good quality, I purchased this and it’s stored in my tool kit. I usually take a topo map with me and I’m not an orienteering expert, I added this to my pack because it adds no weight and might help out if something goes wrong. Thanks GBGB!

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