英文關鍵字
556mm
arms
army
assault
automatic
black
brown
bullet
carbine
collection
colt
fire
firearm
forces
gray
green
grey
gun
leaves
m4a1
machine
magazine
marines
metal
military
nato
needles
pine
police
polymer
rifle
shot
shotgun
sights
silhouette
sniper
soldier
special
straw
swat
tablet
trees
trigger
usmc
war
warrior
weapon
white