Daewoo K2
same rifle, butt folded
Daewoo K1A1 (shortened version); buttstock in extended position
Daewoo DR-200 (semi-auto civilian version in .223 Remington), without magazine; note the "post-1994 ban" thumbhole non-folding buttstock, required by current USA laws

K11 dual-caliber air-burst weapon, left side
K11 dual-caliber air-burst weapon, right side
Caliber: 5.56x45mm NATO + 20x30B mm
Action: Gas operated, rotating bolt for 5.56mm and manually operated for 20mm

Stg.45(M) - German predecessor to CETME rifles, made at the Mauser Werke in 1945
Early CETME assault rifle prototype chambered for experimental 7.92x40mm cartridge
CETME modelo A assault rifle, chambered for 7.62x51mm reduced load cartridge

CETME Mod. L assault rifle
Caliber: 5.56x45 mm NATO (.223 rem)
Action: Delayed blowback
Overall length: 925 mm (860/665 mm mod. LC)
Barrel length: 400 mm (320 mm mod. LC)

Bofors AK5 - basic version
Bofors AK5B - scoped designated marksmen rifle
Bofors AK5 with M203 grenade launcher
Bofors AK5D - shortened version with Picatinny rail

the Interdynamics MKS assault rifle (top, with buttstock unfolded) and MKS carbine (bottom, with buttstock folded)
  MKS rifle MKS carbine Caliber 5.56x45 mm Action Gas operated, rotating bolt Overall length (butt open / folded) 868 / 634 mm 751 / 517 mm Barrel length 467 mm 350 mm Weight 2,75 kg 2,36 kg Rate of fire 750 - 1100 rounds per minute Magazine capacity 30 rounds The Interdynamics AB company of Sweden attempted to enter an assault rifle market with its MKS rifle in mid-1970s. The Interdynamics MKS assault rifle was more or less conventional in respect to materials and technologies, but layout was not conventional, with box magazine serving as a pistol grip. This layout resulted in shorter overall length when compared to conventional rifles with the same barrel lengths, but seriously compromised ergonomics. Because the standard 5.56mm magazine is significantly deeper 9front to back) than a typical pistol grip, the firing hand's hold and a trigger reach were far from being comfortable. The MKS rifles never were made in any quantities and deserved its place in firearm history more as a curiosity than anything else.

Interdynamics MKR assault rifle
schematic drawing of the 4.5 mm rimfire cartridge for Interdynamics MKR assault rifle
Caliber: 4.5x26 mm Rimfire (special ammunition)
Action: blowback