G&P M16 Metal Hop-Up Unit for Marui M4 / M16A2 Series GP083


  • Model: AS1262
  • Manufactured by: G&P


  • G&P ADVANCE SERIES Airsoft Upgrade Parts.
  • This One-Piece Metal Chamber Set is more durable and accurate in feeding BB.
  • Improves Firmness of the chamber & stabilizes the muzzle velocity.
  • Enhanced Hop-Up bucking for accuracy.
  • Fit tightly to the barrel base to keep the chamber being centered.
  • Unlike stock plastic chamber which would bend & de-shape, this metal one give you rigidity.
  • Highly recommend for upgraded Airsoft Electric Gun to withstand higher air pressure.
  • Includes all parts needed for installation.
  • Require expert on installing into stock AEG.
  • As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed.
  • Suitable for Marui M16A2,M4A1,M4 RIS & SR16.
  • G&P high quality product with low price.


  • Weight - 65g
  • Built Material - Aluminum
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    This product was added to our catalog on Friday 25 September, 2009.

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    Disclaimer: All airsoft guns, gas blowback guns, spring guns are NOT real firearms. All airsoft guns sold to US customers are affixed with an orange tip permanently.