Airtech Studios G&G CM16 ARP9 & ARP 556 BEU Battery Extension Unit

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  • Regular price $29.99
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The Airtech Studios ARP 9 Stock Extension extends the stock making it easier for you to fit a battery in the ARP 9 and the ARP556.

  • Easy to Install
  • Adds 60% More Battery Space
  • Durable Constriction
  • Increased Stock Stability