I have used both a cheapo no name clone £35 EoTech 552 and one made by G&P which is arguably the second best clone EoTech 552 at about £100, i've heard it sits just below the one made Hurricane which i have heard are the best clones out there but they cost something like £120 but i have never used them.
Problem i noted with both the cheapo clone and the G&P one
- Is that they are both NOT holosights but Red Dot Sights dressed up to look like holosights
- Because they are RDSs they need a mirrored front which darkens the sight slightly
- They could never hold zero even on an AEG let alone a GBBR
- When you turned the zeroing screws for say up it would go up but at a slight angle say up and right
- They both suffered distortion though admittedly the G&P less than the cheapo one
- In the rain both suffered with fogging which took forever to clear
In the end i bought a Real Steel EoTech 552 and immediately noticed
- It is a holosight
- No Mirrored front so lens are clear through and through
- It CAN hold zero absolute, set it once and never need to set it again unless you move it to a different gun
- When zeroing say up and down, turning the screws moves the sight UP and DOWN only
- What i aim at (if in range) i will hit
- Does not suffer distortion even at some extreme angles
- Does NOT fog as the holo chamber is hermatically sealed and filled with nitrogen
- My guns are more likely to break down before the sight does, its built like a brick outhouse
And yes whilst it can be shot out i put in place a Guns Modify lens protector made for EoTechs so that one stray shot wouldn't damage the sight, i think it would take a 700FPS and not break but why risk it when a lens protector is just a tenner:
http://airsoftzone.co.uk/pc-eotech-lens-protector-guns-modify?filter_name=lens%20protector
I only paid £250 for my EoTech as it was second hand but came with the hard-case, accessories and manual and I know a site seller who is selling Real Steel EoTechs for £250, and before you cry who do you know its real? EoTech published a document showing what signs to look out for when purchasing EoTechs to tell if they are real or fake and whilst some of these can be replicated, the majority can't.
https://thecounterfeitreport.com/product/193/EOtech-552-Holographic-Weapon-Sights.html
http://www.eotechinc.com/sites/default/files/client/recognizing-counterfeit-sights_0.pdf
In the end i'd say buy cheap, buy twice
Heres a pic of me using my G&G MP5A5 at a skirmish with a real steel EoTech 552 attached, you can see the lens protector has been attached and fits seamlessly.
Another pic or me using the RS EoTech 552 on my G&P MOTS M4 (Now converted to a Salient M4 without that horrible Jailbreaker front end), its permanently attached to this rifle now and i'm in the process of getting another EoTech 552 for my MP5.