Z-Parts Steel Bolt Carrier for the Umarex / VFC M4 GBBR is incredibly solid robust. The weight of it will kick back like a mule once it's been in action and is great for continuous precision fire on the opposition forces!
Z-Parts Steel Bolt Carrier for the Umarex / VFC M4 GBBR is incredibly solid robust. The weight of it will kick back like a mule once it's been in action and is great for continuous precision fire on the opposition forces!