Caliber: AK-102 5.56×45 mm NATO; AK-104 7.62×39 M43; AK-105 5.45×39 M74
Action: Gas operated, rotating bolt with 2 lugs
Length, mm: overall: 824; w/folded butt 586
Barrel Length, mm: 314
Weight, 3.0 kg empty
Magazine capacity: 30 rounds
Rate of fire: 600 rounds per minute
The Kalashnikov AK-102, AK-104 and AK-105 rifles are essentially similar to one another, being different only in the caliber and type of magazine used. All three are 'compact' versions of the 5.56mm AK-101, 7.62mm AK-103 and 5.45mm AK-74M, respectively. The main visible differences between those 'Hundredth series compact assault rifles' and earlier 5.45mm AKS-74U compact assault rifle are that 'Hundred series' rifles use somewhat longer barrels and full length gas pistons, as opposed to shorter AKS-74U, and solid, side-folding polymer stocks. In fact, other than shorter barrels with special muzzle devices (flash / blast reducers) those compact rifles are similar in details to their respective full-size variants.