[Various weapon packages] Offset/obscured iron sights
Though many of the Unstoppable Force weapon package iron sights are documented as flawed, there are still some others that have similarly misaligned or obscured iron sights. Naturally I don't have every weapon package in the game, so I'll first list the ones I have that are flawed and in what manner, followed by those that I have that are working normally. This will exclude Factory, Warfighter and Unstoppable Force packages for all weapons.
With issues
RPKM - Triangulation
The weapon's bullet trajectory is too low relative to iron sights and hitmarker, requiring you to aim above the target and completely obscure them below the iron sights to be accurate.
M240L - Gilded Storm
The rear aperture of the weapon's iron sights is positioned too high, obscuring the forward prong and hindering visibility.
M39 EMR - Site Exploration
The white tape wrapped around the middle of the weapon doesn't conform to the groove of the top rail and is bulkier than it, which obscures most of the forward prong and blocks visibility through the bottom half of the rear aperture.
Working normally/no issues
M433 - Striking Distance
B36A4 - Bone Breaker
SOR-556 Mk2 - Happenstance
TR-7 - Shredded Hope
M4A1 - Unidentifiable
M277 - Carrion
SGX - Dominion
PW7A2 - Bell Blaster
UMG-40 - Target Acquisition
KV9 - Contingency
L110 - Hatchet
L110 - Canis Lupus
M/60 - Coincidence
M39 EMR - Cracked Lens
SVDM - Lucky Break
M44 - Clover