Jing Gong Hard Hop Rubber – 400 FPS AEG

The Jing Gong Hard Hop Rubber is a durable replacement hop-up component engineered specifically for high-performance AEG builds operating around 400 fps. Hard rubbers provide superior compression and longevity compared to standard soft variants, making them ideal for sustained skirmishing and training use.

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Key Features

• Hard compound rubber – increased durability and consistency over extended use
• Optimised for 400 fps AEG performance – matched compression for reliability at this power level
• Enhanced hop-up stability – delivers flatter, more predictable projectile trajectory
• Standard AEG compatibility – fits most V2 and V3 gearbox hop chambers
• Cost-effective upgrade – extends hop-up service life and improves range

Real-World Use Cases

Whether you’re running a CQB-tweaked 400 fps build or a mid-range skirmish rifle, hop rubber replacement is a routine maintenance task that yields immediate accuracy gains. Swap this in as part of a regular tune-up, or pair it with a new inner barrel and nub assembly for a complete hop-up refresh. Particularly valuable for players targeting longer engagement distances or those tired of inconsistent grouping.

Technical Specifications

• Hardness: Hard compound
• Optimised FPS Range: ~400 fps
• Compatibility: Standard AEG hop chambers (V2/V3 gearbox)

Compatibility & Upgrades

This rubber suits most stock AEG hop-up chambers and works with standard nubs and barrels. For best results, pair with a quality inner barrel (6.03–6.08 mm bore) and precision hop nub. If your airsoft site permits higher velocity, consider stepping up to a soft rubber; conversely, some CQB environments may favour even stiffer compounds depending on your exact fps rating.

UK Legal & Site Notes

Hop-up rubbers are legal to own and modify in the UK. Always verify your site’s fps limits before deployment—400 fps sits comfortably within most UK skirmish site limits but may exceed some CQB venues. Check your local site rules before the match.

Stock this essential upgrade in your spares kit and enjoy consistent, reliable performance on every outing.