SB556 Mod2 as the Corpus Christi Ground Defense Force standard carbine:
Weight:
2.88 kg empty, 3.45 kg loaded
Length:
842 mm stock extended, 758 mm stock retracted
Barrel:
368 mm fluted cold-hammer forged
Cartridge:
5.56 x 45 mm NATO, 300 AAC Blackout
Action:
Short-stroke piston, rotating bolt
Rate of fire:
600 rounds per minute (cyclic)
Muzzle velocity:
Depends on cartridge
Effective range:
Depends on cartridge
Feed system:
STANAG magazine
Sights:
None provided, MIL-STD-1913 rail allows attachment of various sights
The furniture and accessories include:
FAB Defense GLR-16 buttstock
FAB Defense AG-43 pistol grip
FAB Defense Ultimag 30R polymer magazine
VLTOR KeyMod Picatinny rail section
FAB Defense TAL-4 foregrip
Meprolight M21 reflex sight