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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

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

Specifications:

Compatibility: For most Standard Airsoft AEG Inner Barrels
Package Includes: Hopup Bucking, Hopup Nub
Material: Rubber

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.

21 Customer Reviews

(Write a review)

by Mark B. on 05/24/2025
"I have a Arcturus AK12PE first Gen. I upgraded the hopup unit to the gen2 version and installed this bucking with a lambda smart .03 barrel. My hope was to shoot with .30bbs so I initially tested with 30s and bbs didn't go past 20 feet. Once I dropped down to .25 this bucking was shooting lasers and with great distance with hop still dialed at 0. Ive yet to try it with .28s but sofar with .25bbs I'm more than satisfied.
by Ashton S. on 05/14/2025
"Ive done R-hop, flat hop mods, etc.

To have something as a plug n play with the same results is astounding. This rubber is great and i am getting great range.

My build is a 15” Arcturus with a stock barrel (6.02) and lancer CNC hop up unit. I was having feeding issues with the lancer unit and some other bucking’s ( prommy purple worked great).

Im shooting at 1.45 -/+ 2fps on .20g using either .30g or .28g depending on, and I’m easily hitting an 6” circular target at 170ft about half the time.

It was never meant to be a DMR, and it isn’t but i am considering a x3 flip over magnifier

Overall the worst case scenario is you spend $12. But for me these are the only bucking i will be using now.
by Oliver S. on 04/30/2025
"Haven't had a misfeed since installing this. Super accurate. Feels high quality. Very accurate (although, my testing has been rather limited). I appreciate that there's no guess work on which "degree" to go with. You just buy this thing and it works. Can't see a reason I'd go with anything else.

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