STK 40 GL

The STK 40 GL, formerly the CIS 40 GL^[a] is a 40 mm grenade launcher, developed in the late 1980s and produced by the Singaporean defense firm CIS - Chartered Industries of Singapore (currently ST Kinetics). The launcher is employed primarily by the Singapore Armed Forces and the police and security forces of several other countries.^[1]

STK 40 GL
Type	Grenade launcher
Place of origin	Singapore
Service history
Used by	See Users
Production history
Designer	Chartered Industries of Singapore
Designed	1980s
Manufacturer	ST Kinetics
Specifications
Mass	2.05 kg (4.52 lb) with stock
Length	655 mm (25.8 in) with stock
Barrel length	305 mm (12.0 in)
Cartridge	40x46mm grenade
Action	Break-action, single action
Muzzle velocity	76 m/s (249 ft/s)
Effective firing range	Sights graduated from 100 to 400 m
Feed system	Breech-loaded, single-shot
Sights	Folding leaf sight

Design

According to ST Kinetics Senior Engineer Felix Tsai, the STK 40 GL can be configured to be used with a buttstock or attached underneath assault rifles like the SAR-21, the M16 and HK series.^[2]

Users

•  Czech Republic: 601st Special Forces Group uses it on Samopal vz. 58s.^{[citation needed]}
•  Italy: Made under license by Luigi Franchi S.p.A. as the Franchi GLF-40.^[3]
•  Papua New Guinea: Used by the Royal Papua New Guinea Constabulary.^[4]
•  Poland^[5]
•  Peru: Used during Cenepa war 1995.^[6]

Non-state actors

• Secretly acquired by Tamil Tigers.^[7]

Notes

1. Using the Wayback machine on this CIS 40 GL page indicates that the CIS 40 AGL name was used until 2016, when it changed to the STK 40 AGL name as seen here.