The gun as pictured was 6.25lbs with a 30rds of 6x35
Empty gun with irons was 4.25 lbs.
While the stock is not ideal for some roles, its a stock and can be swapped easily. The requirement was for a very small lightweight system, and for that the old Colt stocks works well.
Since the weapon system has next to no recoil, that stock works very well - I'd spray rubberized truckbed lined on it if I was shooting it waering nylon gear to stock it from slipping.