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Depends on which grenade. Assuming you mean the standard fragmentation grenade used by the US military, they are made from sheet steel. Coiled inside of the body is a steel spring, notched in over 900 places. On detonation, the steel spring breaks apart at the notches, and the bits become projectiles. For the WW 2 era fragmentation grenade, the bodies were iron castings.
If a soldier would throw himself on a (hand) grenade, then his body would absorb much of the blast. He will most likely be killed, but the grenade won't do much other damage.
Acually it was made for wars and it wasn't made on purpose it is important
Cardboard, magnesium, and something else
No.The rifle grenade firing adapter was made for the M-1 Garand rifle only.
use a photosnithasizer to pull out the atoms and use a grenade to distroy the body
There is no safe way to make a grenade, even an Airsoft grenade can be dangerous if not made correctly, and making an explosive device is against Federal and Local laws. Better to get one that's already made.
Unsure of your term "sustain" a grenade. If you are referring to withstanding the blast or stopping the fragments, quite a few things. The standard hand grenade is not all that powerful, and can be stopped by earth, wood, sandbags, concrete, metal, etc. Body armor is intended to stop fragments.
made war easier to fight.
The grenade will be shot
Rocket Propelled Grenade
A hand grenade.