Weight and Six Eight might have been a tad confusing...
Bare rifle: 6.9 lb.
5 round magazine (loaded): 0.5 lb.
15 round magazine (loaded): 0.8 lb.
25 round magazine (loaded): 1.3 lb.
30 round magazine (loaded): 1.7 lb.
Tapco SUIT mount: 0.5 lb.
SUIT L2A2: 1.0 lb.
Surefire X300 light: 0.2 lb.
Harris 1A2 Ultralight bipod: 0.8 lb.
Magpul MS3 single QD sling: 0.4 lb.
Bare rifle: 6.9 lb.
5 round magazine (loaded): 0.5 lb.
15 round magazine (loaded): 0.8 lb.
25 round magazine (loaded): 1.3 lb.
30 round magazine (loaded): 1.7 lb.
Tapco SUIT mount: 0.5 lb.
SUIT L2A2: 1.0 lb.
Surefire X300 light: 0.2 lb.
Harris 1A2 Ultralight bipod: 0.8 lb.
Magpul MS3 single QD sling: 0.4 lb.