Uploaded August 2024 | Updated September 2026, 3 weeks ago

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In this video I will explain in basic terms as well as in advanced terms: how to tune your FX impact M4 PCP air rifle for the best accuracy. Using the tuning techniques outlined in this video, any shooter can achieve outstanding results with the FX Impact platform, either with the new M4, or the M3 model. In addition, this video will show you all the factory tunes from the FX USA tech department. This will allow you to bring any model and caliber of FX M3 or M4 back to the factory tune. From that point, using the techniques outlined in this tuning video, you can dial in your other settings and find a perfect harmony between the hammer spring, regulator pressure, and valve adjuster.

FX Impact M3 Tuning Guide: youtube.com/watch?v=rd5M6eOLWRg

You can order your own M4 at Pyramyd Air by clicking here: anrdoezrs.net/click-100005961-12817065?url=https%3A%2F%2Fwww.pyramydair.com%2Fproduct%2Ffx-impact-x-black-pcp-air-rifle%3Fm%3D4825%2313094

My HELIX scope is here: jdoqocy.com/click-100005961-12817065?url=https%3A%2F%2Fwww.pyramydair.com%2Fproduct%2Felement-optics-helix-6-24x50-ffp-apr-2d-mrad-reticle-30mm-tube%3Fa%3D9857

Thanks for watching! -Nate