aimpoint 3x Go to the Aimpoint website and do a comparison. I got this. The rest is pretty much the same. http://www.Aimpoint.com/us/products/product-comparison/ Material housing Diff PRO – High strength aluminum M3 – Extruded high strength aluminum Battery life in hours ** Diff PRO – 30 000 (over 3 years of continuous use) M3 – 50 [...]

They do on mine. Why wouldn’t they? WI57 8/4/2011 3:08:35 PM I buy from them because if for some unknown reason to me I don’t like their product, they will make it right. Shalashaska 8/4/2011 3:09:10 PM NoStockBikes: kcolg30: kcolg30 regularly visits their website and transfers monies via CC to the great people in TX. [...]