Seems well made - Patriot Optics Shapeshifter Holographic Sight

Just received it. Didn't know DHL was still in business but that's what OP used, so delivery was not very fast but no worries.Seems really well built and sturdy. Installed it on my Mossberg 590 and the mounting system seems really sturdy and can be tightened with the provided screwdriver. It did not come with battery no problem have a bunch of 2032's so i slapped it in. Boresighted with my laser at 35 yards and it zeroed fine. I will have to test it out at the range and see if it holds zero ok. I will rate it again after I test it out with a couple of hundred rounds.