Specs:
Materials: 6061 T6 machined aluminum
Adjustment: horiz. & vert. calibrated gang
Pins: 4 Black Fin Fiber Optic
Finish: Black
Comments: This is one of those products that dosn't really look "impressive" as far as sights is concerned BUT it is a very functional and durable hunting sight. I would highly suggest it to anyone that is looking for a good solid hunting sight.
Here is how I rate it with 1 being the worst & 10 being the best.
Durability: 10
Adjustibility: 7 (does not have micro adjustment for ultra fine tuning)
Lowlite Performance: 8.5 (I can see them just about till you can't see to shoot anymore) Note: green & yellow show up much better than red which does fade out faster.
Additional Comments: I wish this site came with 5 pins instead of 4 and I wish they would include the extra bubble level with it. Other than that I have no complaints & I am very happy with the product. The lifetime warranty is a nice bonus & includes the Black Fin pins so what more could you ask for?
For more info and a picture go to:
http://www.montanablackgold.com/grandslam.htm