I have a Rev C. 552, and no manual. A question....Are all 'revisions' of Eotech parallax free? The reason I ask is, when the rifle is stationary, that dot seems to float way off initial POA whenever I move my eye position in relation to the sight. (Maybe it's just that I don't fully understand the dynamics of 'parallax').
I'm mounting this directly on the flat top rail of my J&T A3 carbine upper. For some reason, the front housing will not clear the top of the 'standard' carbine handguard. Shouldn't I be able to mount this directly to the receiver anywhere along the top rail without the handguard interfering? If not, what other mounting options do I have? And finally, would anybody be able to point me in the right direction as to where I might find instructions for sighting in the Eotech.
Thanks in advance.

All EOTechs are parallex free, my EOTech do the same, but never had a problem shooting it.

I just got my EoTech the other day & I don't remember anything special in the instructions about sighting in.

Just sight in like you would any other scope....decide on what distance you want your zero to be and start dialing it in!

Yup....easy as heck to dial in...I did mine at about 50m, all in the circle after about 12rounds.