FX Impact m3 Fill with the GX CS4 and Tuxing 4500 PSI Filter, to ensure dry clean air is going into your rifle. This is a time comparison between the inline air filter of the GX CS4. Not recommended to rely on the GX CS4 inline filter spend the money and get ok at a push for emergencies

Amazon Affiliate links:

Link for Tuxing 4500 Filter: https://amzn.to/46yNb6S
Link for GX CS4E: https://amzn.to/4c7ezd9
Link For GX CS4I: https://amzn.to/4c96Jzy