機器
223
556
ammo
ammunition
ar
ar15
arms
army
assault
automatic
ballistic
bullet
cal
caliber
cartridge
enforcement
ferrum
firearm
full metal jacket
green
gun
iron
law
lead
m16
m16 magazine
m4
m4a1
machine gun
magazine
metal
military
oxide
projectile
rifle
round
rust
rusty
shell
steel
surplus
table
us
usa
usgi
war
waterproof
weapon