FX Scope for Impact M4

You should probably include some details on how you’re going to use the M4. Shooting paper,shooting varmint or both. Type of reticle you prefer, lighted reticle or not, optical power range, and weight can all factor into picking a good scope for your application. Then of course optical clarity depending on what your doing and most importantly price range. My favorite scope is a Vector Continental 5x30. It checks all my boxes and at the time was a medium budget scope I bought on AGN classifieds.
 
I use a Element Helix 6 24x50 FFP Gen2. So far no complaints. The only thing is, if you are new, make sure you read more abou MOA and MRAD. I live in The Netherlands and we use the metric system. MOA is in my case a bit difficult (or should I say, a challenge) to get use to because it works a bit different. But because I am new in PCP world I think it won't bother me much. Good luck.