I know that I am a little late in responding to a March post. However, I just got started here. I have several DP markers, two G3iq's and an FX Fusion. I love them all. To answer your question on the FX, I have both the TectT Hush bolt and Law Ram. Both do wonders for the marker. It's quieter, smoother shoot and efficient. I would recommend both upgrades to any FX owner. Other than that, I like the gun as it is.