MMM strange how everyones first words on a mag 91 is its going to be a brick! But yet do a search and a big percentage of guys swear on the OS 70 surpass as a perfect match for the GP Ultamate 40 bipe. For all that are slamming the Mag 91 as being too heavy. Its wieght is only .3oz heavier than the OS 70 surpass.So just for the record
OS .70 Surpass =22.1oz
Magnum XL .91RFS = 22.4oz