4UANTUM Hop-Up Bucking Friction Pro GBB with Nub
Product Overview
The 4UANTUM Hop-Up Bucking Friction Pro - GBB Bucking & Nub is a high-precision internal upgrade designed to drastically improve range, shot grouping, and backspin consistency in gas blowback (GBB) airsoft pistols and rifles. Engineered with advanced rubber compound technology, this upgrade set maximizes contact friction against the BB while minimizing velocity drop for flat, predictable flight trajectories.
Featuring a specially contoured internal contact patch, the Friction Pro bucking applies uniform pressure across the BB surface, stabilizing spin even when lifting heavy-weight ammunition. Paired with a custom-matched hop-up tensioner nub, this drop-in upgrade reduces misfeeds and ensures tight groupings at medium and long engagement ranges. It is an ideal performance enhancement for airsoft technicians and players aiming for match-grade marksmanship.
Technical Specifications & Materials
Made from high-durability, temperature-resistant synthetic rubber compound. Engineered to fit standard GBB inner barrels and hop-up chambers, included with a specialized hop-up nub for precise pressure application.
- Product Category: Airsoft Internal Upgrade / Hop-Up System
- Brand / Manufacturer: 4UANTUM
- Model / Series: Friction Pro GBB Series
- Compatibility: Standard GBB Airsoft Pistols & Rifles
- Package Includes: 1x High-Friction Bucking & 1x Precision Nub
- Primary Benefit: Enhanced Backspin Stability & Tight Groupings
| SKU | 616235 |
| Category | Internal Part |
| Two Tone Weapon | No |
| Variant | Hop-Up Bucking |

