U.S. Army Booby Traps FM 5-31 Field Manual Book SSG. Eye relief: 2

Eye relief: 2

By knowing the slope you can also judge any extra distance that you need to go due to the slope

and base plate map-measuring in mm and scales of 1:25k

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U.S. Army Booby Traps FM 5-31 Field Manual Book SSG. Eye relief: 2New copy of the original U. S. Army issued booby traps field manual (FM 5 31) Includes introduction and principles of booby traps, basic doctrine, planning, installation, equipment firing devices, demolition materials, small missile construction techniques, miscellaneous booby trap designs from improvised materials, detecting removal of enemy booby traps, clearing disarming methods and more Heavily illustrated and very easy to understand Covers the