mp5 slither stock rear sling point
 

anyone know of a way to prevent the rear sling point from popping out on the mp5 sliter stocks. Kinda sucks that running a sling is pointless cause the mount just pops right out under the weight of the gun.
Im thinking i may just have to use a peice of para cord unless there is a real solution.
How does it attach on a real mp5?