Beginning 29 AUG 2025, the “de minimis” exemption, which allowed shipments of goods worth $800 or less to enter the United States duty free, will be eliminated. (Detail Here)

Important Notice for Our U.S. Customers

he United States has suspended its duty-free de minimis treatment for all countries, effective August 29, 2025, meaning low-value shipments (previously under $800) will now be subject to all applicable duties and taxes.

By acknowledging this notice, you agree to accept responsibility for any customs duties, taxes, or tariffs imposed on your order. Please note that we cannot accept "non-payment of taxes" as a valid reason for order rejection.
We appreciate your understanding and continued support. Customer have any questions, Please do not hesitate to contact us.

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Guns Modify

Guns Modify Gen.3 RTF アンダーカットフレームマルイグロック用(GM0307)

$73.00 USD

Delivery and Shipping

In Stock Item Process Within 24 Hours.


Manufacturer: GunsModify
SKU: GM-GM0307

  • Fiber reinforced polymer construction
  • Stainless steel front / rear screw posts
  • The latest version of Gen3. with ZEV style CNC cut and handmade stippling 
  • Deep under cut and mag release cut ready ( Need Minimum Modification with the mag catch)
  • Suitable for Marui G-Series G17 / G18C / G22 / G34 Gen.3 GBB airsoft pistol


**Airsoft Replica for Toy and Airsoft Use Only

**Fitting may be needed as the condition of each airsoft gun might be different. Please refer to your airsoft gunsmith for proper installation / fitting.

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