Bought a couple of these just to see what the quality was like. In short, am very impressed. Holds zero without problem on my LR308. Very well built. They also have a magnifier for about $40 that works excellent with it. Shipping from China is a little high if you go air. These guys have some great deals on all sorts of stuff including flashlights, scopes, lasers, etc. Best to buy several items at once to save on shipping. Very cool website with a bunch or great quality items at a fraction of what you'll pay stateside.
Weight(g): 320/365
Battery:2xAG13
Material:aluminium alloy