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Home » Airsoft Accessories, Attachments & Parts » Hop-Up Buckings

4UAD SmartAirsoft 4UANTUM Friction Pro High-Performance Bucking for Airsoft AEGs

ID: 113269 (HU-4UAD-FPA-001)
AEG-001
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4UAD SmartAirsoft

$12.00

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Product Description

Features

  • Works with standard AEG hopups and barrels
  • Designed to create perfectly centered axis of spin for ultimate consistency
  • Unique contour of the contact patch allows the lift of heavier BBs up to 0.48g
  • Minimized contact surface to eliminate error
  • Flat, consistent and accurate trajectory!
  • Improve accuracy, range, and groupings
Designed to achieve ultimate consistency, the Friction Pro hop-up bucking focuses on creating a perfectly centered axis of spin in every shot. While based on a rather traditional single-point design, the unique contour of the contact patch generates enough friction to even lift heavy BBs up to 0.48 grams, while minimizing contact surface to ensure there's no room for error. Resulting in a flat, consistent, and accurate trajectory!

Manufacturer: 4UAD SmartAirsoft

28 Customer Reviews

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by Matthew H. on 03/24/2026
"I love these buckings! I've bought two so far and I'm going to get another soon. They give very nice, very consistent hop. I generally use .23g to .32g BBs depending on the weather and I've had only good results. They're sturdier than other buckings I've used and they have a nice seal. I highly recommend these, despite the "high price" (=
by Deneson E. on 03/19/2026
"Best plug and play bucking.

If you're not willing to spend or work on R-Hops, this is the closest thing you can get without doing any modifications. It works with most barrels and hop-ups. Many AEGs today already comes with tight bore barrels (6.02-6.03) and rotary hop-ups, so this is the next best thing you can get to improve accuracy.
by Josiah E. on 10/21/2025
"Works great, easy upgrade, worth it. I'm shooting lasers now.

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4UAD SmartAirsoft

About 4UAD SmartAirsoft

4UAD is a team of passion-driven enthusiasts on a mission to produce practical, systematic experiments on each aspect of Airsoft performance.