Properly kitted out, and judging by the number of open slots in front of your sight, you and I are of similar height, or at least shoot with the same eye relief and stock settings.
Other odds and sods, A Cadex fold down front grip was issued and attached in late 2006-07, I hated them and as a M203 gunner never used it. Inside the pistol grip there was a small clip in AA battery holder for spares, it was black plastic and may have been sourced from Cadex as well.
More UFI, the front Triad rail mount was installed flipped forward for use with the M203, as the launcher sight got in the way. Yours is correct as installed without M203.
Good looking rifle, one of these days I will have to drop the $4-5K and pick up a Colt CanadaC7 and C8 for nostalgia.