AEG Piston Assembly Weights

  • Stainless Steel

    Bronze-infused stainless steel with visible print lines and rough feel.


With the recent scrutiny given to volume balancing and associated piston assembly mass tuning, these tools were introduced to allow users to easily and significantly increase their piston assembly mass. Their sizes correspond to the medium, large, and extra large spring shims, and carry the approximate masses of 2.2, 4.4, and 8.8 grams respectively or 15.4g for the entire kit. (ref. a high mass Prometheus hard piston is ~16g) Just as with the spring shims ( an FPS increase will be seen with each mass addition, and will be approximately as follows: Medium -- ~8-12fps; Large -- ~18-24fps; XLarge -- ~47 fps [CAUTION]


IN: 1.299 w x 1.299 d x 1.299 h
CM: 3.3 w x 3.3 d x 1.2 h