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.

4UANTUM  |  SKU: 4UAD-TDC-006

4UAD Magnus Pro 416 Precision TDC Hop-Up Chamber for VFC HK416 GBB ( TDC-006 )

$74.00 USD
Shipping calculated at checkout.

Delivery and Shipping

In Stock Item Process Within 24 Hours.


Information

4UANTUM "Magnus Pro" Precision TDC HOP-UP Chamber (VFC/Umarex HK416 GBB)
Building on 4UAD proven MagnusPro AR, the MagnusPro 416 offers a complete solution for users looking to get the most out of their legacy VFC HK416 GBBRs.

Machined from solid 6061 aluminum billet, it features our patented self-centering tri-lug locking mechanism and stepless true TDC (Top-Dead-Center) adjustment. The design maintains a consistent hop up contact position throughout the entire adjustment range for precise, repeatable tuning. The adjustment wheel is accessible through the ejection port, allowing easy adjustment without disassembly.

An overlapping shroud design reinforces the outer barrel assembly and eliminates potential barrel wobble. Two barrel sleeve (Short & Long) is included to accommodate a wider range of legacy VFC HK416 models.

Manufacturer: 4UANTUM
SKU: 4UAD-TDC-006

  • CNC 7075 Aluminum construction
  • True Top-Dead-Centre (TDC) Adjustments
  • Recommend use with 4UAD Friction Pro GBB Hop-Up Bucking ( NOT included )

Compatible with VFC / Umarex HK416 GBB series below:

  • VFC/Umarex HK416 GBB Gen2 (V2) and Gen3 (V3) version. (model which with Guide-HOP Quick Adjusting design.)
  • VFC/Umarex HK416D, SKU #VF2-LHK416-BK02, BK03
  • VFC/Umarex HK416A5, SKU #VF2-LHK416A5-BK01, TN01, BK81, TN81, BK03, TN03
  • VFC/Umarex HK M27 IAR Gen2, #VF2-LHK416M27-BK02
  • VFC/Umarex HK416D CAG, #VF2-LHK416-TN04

NOT compatible: (Due to different outer barrel and HOP-UP design.)

  • VFC / UMAREX HK416A5 EVO GBB, SKU #VF2-LHK416A5-BK04, TN04
  • VFC / UMAREX HK416D ( V1 ) GBB, SKU #VF2-LHK416-BK01
  • VFC / UMAREX HK416C GBB, SKU #VF2-LHK416C-BK01
  • VFC / UMAREX HK M27 IAR ( V1 ) GBB, SKU #VF2-LHK416IAR-BK01
  • VFC / UMAREX HK417 GBB, SKU #VF2-LHK417- Series
  • VFC / UMAREX HK G28 /M110A1 GBB, SKU #VF2-LG28- Series /VF2-LM110A1-TN01
  • NOT compatible with HK416 GBB series from other airsoft brands. ( VFC / UMAREX, VFC only )
  • NOT compatible with non-HK416 airsoft GBB model
  • Japan specification airsoft GBB inner barrel / precision inner barrel products may not be applicable or require additional processing before installation due to different design specifications and slots. Including PDI, KM, Laylax inner barrel products, are NOT applicable