Customize and upgrade your airsoft loadout with premium parts and accessories built for performance. Shop CNC aluminum slides, inner barrels, hop-up units, triggers, guide rods, and recoil springs from top brands like CowCow, Dr. Black, Poseidon, Action Army, and LayLax—all compatible with popular platforms like hi capa, M4 AEGs, and GBB pistols.
Whether you're building a custom race pistol or tuning an AEG for milsim, our selection includes TM-compatible upgrades, precision parts, and tactical add-ons. Enhance your accuracy, durability, and style with high-performance components—available now at airsoft megastore.
![Lancer Tactical M190 Quenching Spring Upgrade [590-620 FPS]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-18880-1200x800-1-480x480.jpg "Lancer Tactical M190 Quenching Spring Upgrade [590-620 FPS]")
![Prometheus 6.03mm x 229mm EG Inner Barrel for Airsoft AEG [MP5]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-22484-1800x1200-1-480x480.jpg "Prometheus 6.03mm x 229mm EG Inner Barrel for Airsoft AEG [MP5]")
![Prometheus 6.03mm x 247mm EG Inner Barrel for Airsoft AEG [P90, G36C]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-22485-1800x1200-1-480x480.jpg "Prometheus 6.03mm x 247mm EG Inner Barrel for Airsoft AEG [P90, G36C]")
![Prometheus 6.03mm x 260mm EG Inner Barrel for Airsoft AEG [AK74U]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-22486-1800x1200-1-480x480.jpg "Prometheus 6.03mm x 260mm EG Inner Barrel for Airsoft AEG [AK74U]")