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.
![Element Airsoft Upgrade: M125 Grade Spring for AEG [390 - 430 FPS]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-268-1200x800-1-480x480.jpg "Element Airsoft Upgrade: M125 Grade Spring for AEG [390 - 430 FPS]")
![Element Airsoft M95 CQB (Low FPS) Irregular-Pitch AEG Spring [290 - 350 FPS]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-10684-1200x800-1-480x480.jpg "Element Airsoft M95 CQB (Low FPS) Irregular-Pitch AEG Spring [290 - 350 FPS]")
![Element Airsoft M105 Grade Irregular-Pitch AEG Spring [350 - 380 FPS]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-10685-1200x800-1-480x480.jpg "Element Airsoft M105 Grade Irregular-Pitch AEG Spring [350 - 380 FPS]")
![Element Airsoft Upgrade: M115 Grade Spring for AEG [340 - 380 FPS]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-273-1200x800-1-480x480.jpg "Element Airsoft Upgrade: M115 Grade Spring for AEG [340 - 380 FPS]")
![Element Airsoft M165 Grade Irregular-Pitch AEG Spring [500 - 550 FPS]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-10686-1200x800-1-480x480.jpg "Element Airsoft M165 Grade Irregular-Pitch AEG Spring [500 - 550 FPS]")
![Element Airsoft M175 Grade Irregular-Pitch AEG Spring [540 - 580 FPS]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-10687-1200x800-1-480x480.jpg "Element Airsoft M175 Grade Irregular-Pitch AEG Spring [540 - 580 FPS]")
![Prometheus 6.03mm x 185mm EG Inner Barrel for Airsoft AEG [M4 P.M.C.]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-22483-1800x1200-1-480x480.jpg "Prometheus 6.03mm x 185mm EG Inner Barrel for Airsoft AEG [M4 P.M.C.]")
![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 285mm EG Inner Barrel for Airsoft AEG [MC51]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-22488-1800x1200-1-480x480.jpg "Prometheus 6.03mm x 285mm EG Inner Barrel for Airsoft AEG [MC51]")
![Prometheus 6.03mm x 300mm EG Inner Barrel for Airsoft AEG [M733, MC+]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-22489-1800x1200-1-480x480.jpg "Prometheus 6.03mm x 300mm EG Inner Barrel for Airsoft AEG [M733, MC+]")
![Prometheus 6.03mm x 363mm EG Inner Barrel for Airsoft AEG [M4A1, SR16, SG551]](https://www.airsoftmegastore.com/image/cache/catalog/product/pd-22490-1800x1200-1-480x480.jpg "Prometheus 6.03mm x 363mm EG Inner Barrel for Airsoft AEG [M4A1, SR16, SG551]")
