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SIG SG-552 Commando


SG-553


Overview


SG-552 Commando

Left side view of a SIG SG-552 Commando with 30 round magazine.
Source: Mediathek VBS - © Public domain

Origin
Switzerland
Type
Compact assault rifle
Entered service
1998 for SG-552
2009 for SG-553
2014 for SG-553R
Status
In service
Development
Mid 1990's
Developer
Switzerland - SIG
Production
Late 1990's - present
Producer
Switzerland - SIG
Number produced
Produced in relatively large numbers for a compact assault rifle
Notable users
Switzerland

Variants


SG-552 Commando

The SG-552 Commando was introduced in 1998 and is the shortest version of the SG-550 family of assault rifles. It differs from the SG-550 in having a much shorter barrel and handguard and the recoil spring is mounted differently. During the last production years it was available with a longer barrel as the SG-552 LB. When upgraded with the SG-553 recoil spring assembly it is known as SG-552 A1.

SG-553

The SG-553 is a product improved version of the SG-552 introduced in 2009. It solves several reliability issues of the SG-552 and features the standard SG-550 recoil spring assembly. A SG-553 LB with longer barrel is also available. Since it was introduced at a later date a Picatinny rail for optical sights is standard and a quad rail forearm can be fitted instead of the polymer one.

SG-553R

Variant of the SG-553 chambered in 7.62x39mm Soviet. This was introduced around 2014. The SG-553R uses standard AKM pattern rock and lock magazines. The barrel is slightly shorter than that of the SG-553 LB.

Details


Facts SG-552 SG-552 LB SG-553 SG-553 LB SG-553R
General
Origin
Switzerland
Type
Assault rifle
Caliber
Caliber
5.56x45mm GP90 or 5.56x45mm NATO
Feed system
30 round detachable box magazine
10 and 20 round capacity available as well
Barrel length
226 mm
Rifling
6 grooves, 250 mm for GP90 ammunition, right hand twist
6 grooves, 178 mm for NATO ammunition, right hand twist
Muzzle velocity
725 m/s
Operation
Action
Gas operated, long stroke gas piston
Locking
Rotating bolt
Fire selector
0 - 1 - 3 - F
Rate of fire
700 rpm
Dimensions
Stock type
Side folding, optional cheekpiece
Length
730 mm stock extended
504 mm stock folded
Height
210 mm without magazine or optical sight
Weight
3.2 kg
Sights
Mechanical
Iron sights, hooded post front and diopter rear
Sight radius
360 mm
Optics
Optional using add-on mounting rail
Accessories
Bipod
Optional
Grenade launching
Cannot launch rifle grenades
Bayonet lug
No

Related articles


SIG SG-550

The SG-552 Commando is the most compact version of the SG-550 series of assault rifles.

Heckler & Koch G36C

The G36C is a direct competitor to the SG-552 Commando. This is the compact model of the G36 series of assault rifles.

Colt M4 Commando

The SG-552 Commando fulfills a similar role as the American M4 Commando.