Dont quote me, but the LRH is about 7200 ci, I wanna say, and the Optics pack 4800-5000. Again, dont quote me, but im positive thats close. Everything ive read about them is positive! Granted, most reviews ice ive encountered centered on the optics pack. The layout looks smooth and streamlined, and I think all the Outdoorsmans accesseries interchange. Im seriously thinking about the Optics pacck myself, along with the Ultra 6000, and the Full Curl system. Hard pick. One thing against the O pack, that I cant say about the LRH, is that I dont think you can use the frame soley. Hope this hhelps.