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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4UANTUM  |  SKU: 4UAD-SLEEVE-001

4UAD Magnus Pro Hop-Up Bucking Sleeve ( SLEEVE-001 )

$10.00 USD
次精算時に配送料を算出。

Delivery and Shipping

In Stock Item Process Within 24 Hours.


Manufacturer: 4UANTUM
SKU: 4UAD-SLEEVE-001

  • Steel construction
  • Sleeve for 4UAD Magnus Pro TDC Hop-Up Chamber
  • Recommend use with 4UAD Friction Pro GBB Hop-Up Bucking ( NOT included )
  • Compatible with GHK V3 AR / M4 series
  • Compatible with VFC V2 and V3 AR / M4 series, Install with the included spacer
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