機器
accuracy
aiming
ammunition
armed
arms
army
assault
automatic
background
barrel
belt
black
caliber
carbine
classic
crime
crosshairs
danger
defense
fire
firearm
gun
lens
metal
military
modern
nobody
object
optic
optical
police
pressure
rifle
scope
shooting
shot
sight
sniper
steel
stock
swat
target
trigger
violence
war
weapon