GBB parts
GBB Parts – Everything you need to get maximum performance from your gas replica
Gas Blow Back pistols and rifles are popular because of their realistic operation and sharp recoil, but to really get the most out of your replica, customisation is required.
At Airsoft Legends, you will find an extensive selection of GBB parts from top brands such as CowCow Technology, Maple Leaf, KJ Works, WE Airsoft, TTi Airsoft, LayLax and Ra-Tech. Whether you want an improved air seal, more accurate shot pattern or more responsive cycle, you will find the right parts here.
Why choose GBB upgrades?
A good set of GBB parts will take your replica to a higher level of performance. Think of accurate inner barrels, stable hop-up chambers, durable nozzles and tunable NPAS systems. Ideal for players who want to fine-tune their sidearm or convert an existing GBB into a high-performance backup.
What will you find in this category?
- Inner barrels in various diameters for better accuracy
- Hop-up chambers and buckings for more stable BB flight
- Nozzles and valves (inlet/exhaust) for optimal gas flow
- Mag lips and pistons for reliability during intensive use
- Tuning parts such as NPAS systems and piston heads
- Cosmetic upgrades such as precision outer barrels and pistol slides
- Suitable for brands such as Tokyo Marui, WE, KJ Works, GHK and more
Who is it suitable for?
- Avid airsofters who want to fine-tune their GBB sidearm
- Tech-savvy players who demand performance and reliability
- Airsoft engineers who want to build custom models
- Players who like to experiment with NPAS tuning and gas management
Take your GBB to the next level with parts that make a difference.

- Visit our shop in Capelle aan den IJssel
- Returns within 14 working days
- Free shipping from €99 (NL and BE)
- Visit our shop in Capelle aan den IJssel
- Returns within 14 working days
- Free shipping from €99 (NL and BE)
- Visit our shop in Capelle aan den IJssel