Zastava M21

The Zastava M21 is a series of 5.56×45mm NATO firearms developed and manufactured by Zastava Arms.

Zastava M21
Class Manportable
Type Rifles
Manufacturer Zastava Arms
Origin Yugoslavia (Serbia)
Country Name Origin Year
Yugoslavia (Serbia) 2004
Country Name Operational Year Retirement Year
Armenia View
Bosnia-Herzegovina View
Cameroon View
Iraq View
Jordan View
Macedonia View
Peru View
Yugoslavia (Serbia) View
Azerbaijan View
ManufacturerName Production From Production To Quantity
Zastava Arms View

The M21 is based on the AK-47 Kalashnikov principle, chambered in the 5.56×45mm NATO cartridge. The current models use a 1.5mm thick stamped receiver, while a future model will feature an improved receiver of 0.9mm thickness to achieve a considerably lighter weight. Like many modern assault rifles, the M21 can incorporate picatinny rails for mounting accessories like optics, vertical grips, bipods, etc.

The Zastava M21 is gas operated with a rotating bolt locking system. It features a hard chromium-plated, cold forged standard rifled or an optional polygonal rifled barrel, integrated 22mm flash hider grenade launcher, rigid polymer folding stock, heavy-duty synthetic handguard with an additional left hand side fire selector, cover mounted picatinny rail for optical sights. The rifle can also mount a 40mm under-barrel grenade launcher. It has a magazine capacity of 30 rounds. The cyclic rate of fire is 680 rounds per minute, and the sustained rate of fire is 120 rounds/min.

Type Assault rifle, submachine gun
Place of origin  Serbia

Production history
Designer Marinko Petrovic
Manufacturer Zastava Arms
Produced 2004-present
Number built 50,000+
Variants See Variants
Weight 4.15 kg (9.1 lb) (M21 A)
4.07 kg (9.0 lb) (M21 S)
3.91 kg (8.6 lb) (M21 C)
Length 1,000 mm (39 in) stock extended, 750 mm (30 in) stock folded (M21A)
915 mm (36.0 in) stock extended, 666 mm (26.2 in) stock folded (M21S)
825 mm (32.5 in) stock extended, 575 mm (22.6 in) stock folded (M21C)
Barrel length 460 mm (18 in) (M21 A)
375 mm (14.8 in) (M21 S)
325 mm (12.8 in) (M21 C)
Cartridge 5.56×45mm NATO
Action Gas-operated (rotating bolt)
Rate of fire 680 rounds/min
Muzzle velocity 925 m/s
Effective firing range 450 m (490 yd) with iron sights
600 m (660 yd) with optics
Feed system 30-round detachable box magazine
Sights Adjustable iron sights, optional mount required for optical sights

End notes