Systema is the original manufacturer of the airsoft PTW (Professional Training Weapon) AEG, and has been leading the airsoft industry in terms of high quality airsoft parts, upgrades, and accessories. Systema is based in Japan, and is renowned in the airsoft industry for their precision crafted airsoft parts and upgrades which are compatible with many different airsoft gearboxes. With a large variety of internal upgrade parts, such as upgrade springs, pistons, cylinder heads, piston heads, and tappet plates Systema manufactures parts for all of your airsoft gearbox needs. Airsoft Megastore is proud to carry a wide range of Systema products for the absolute LOWEST price on the market!

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