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SIG GL 5040


GLG 40


Overview


SIG GL 5040

Left side view of a SG-550 assault rifle with GL 5040 underbarrel grenade launcher. Note the flip-up sight attached to the rifle's rear sight block.
Source: Unknown author - © Copyright lies with original owner

Origin
Switzerland
Type
Grenade launcher
Entered service
1997
Status
In service
Development
Mid 1990's
Developer
Switzerland - SIG
Production
1997 - Present
Producer
Switzerland - SIG
Also marketed by SIG Sauer, but possibly not produced in the USA
Designations
Gewehraufsatz 97 (Swiss service)
Notable users
Switzerland - Army standard issue
Malaysia - Special operations forces
Spain - Law enforcement

Variants


List of GL 5040 variants

GL 5040
Under barrel grenade launcher with mounting bracket for the full size SG-550 rifle.
GL 5140
Variant with mounting bracket for the SG-551 carbine.
GL 5340
Variant with mounting bracket for the SG-553LB compact assault rifle with longer barrel.
GL 75140
Variant with mounting bracket for the SG-751 battle rifle.
GLG 40
Standalone model based on the GL 5040 series of launchers. This has a SG-550 style pistol grip and folding stock.

Details


Facts GL 5040 GL 5340 GLG 40
General
Origin
Switzerland
Type
Underbarrel grenade launcher
Caliber
Caliber
40x46mm NATO
Feed system
Single shot
Barrel length
305 mm
Rifling
12 grooves, 1.2 m right hand twist
Muzzle velocity
75 m/s
Operation
Action
Breech loaded
Fire selector
0 - 1
Rate of fire
Single shot
Trigger
Double action
Dimensions
Length
432 mm
Width
60 mm
Height
113 mm
Weight
1.74 kg
Sights
Mechanical
Iron sights, front sight on launcher, rear sight attaches to rifle's rear sight block
Sight radius
500 mm for GL 5040
426 mm for GL 5140

Media


Related articles


SIG SG-550

The GL 5040 and GL 5140 were specifically developed for use with the SG-550 assault rifle and SG-551 carbine respectively.

SIG SG-552 Commando

The GL 5340 is intended for use with the long barrel version of the SG-553 compact assault rifle.

Heckler & Koch HK 69

The GLG 40 stand alone launcher has a similar role as the widely used HK 69.