G&P - M63A1 Tactical Rail Machine Gun P09 The rear serrations are called

The rear serrations are called DNA collectors because it

Polymer foregrip and lower receiver

the HS2000 pistol (most widely known in the United States as Springfield Armory XD)

and the shoot-up is adjustable

G&P - M63A1 Tactical Rail Machine Gun P09 The rear serrations are calledThe real steel Stoner 63, also known as the XM22 E1, was an American modular weapons system designed by Eugene Stoner in the early 1960s. It was put to use in very limited numbers in Vietnam by members of the United States Navy SEALs and several law enforcement agencies at the time. A revolutionary modular design, it could be configured in lighter assault rifle, light machine gun, lighter or heavier barrel, short commando and other variants. It was