grenade machine gun gMg
gmg
4 0 m m x 53
Incre a singly, a r med f orce s worl dw ide require a uni v er s a l f ire supp or t s ys t e m .
T h a nk s to it s high r at e of f ire , combined w it h t he f r agmentat ion a nd a nt i - a r mour ef f ec t of t he 40 mm rounds, t he GMg combine s t he a dva ntage s of m achine guns a nd
In t he pa s t, a r mie s h av e depended on he av y m achine guns or a dd - on gren a de l aun -
gren a de l auncher s. W h at is more , i t prov ide s high oper at ion a l f l e x ibil it y. It c a n
cher s, bu t neit her is a n ide a l solu t ion. W it h nor m a l sm a l l a r ms, ef f ec t i v e a imed
be used eit her on a t rip od a s a n infa nt ry w e a p on f or eng aging ground ta rge t s, or
shot s become l e ss l ik ely a s t he r a nge incre a se s. Moreov er , con v ent ion a l rif l e
ins ta l l ed on a mount f or use on l a nd v ehicl e s or pat rol boat s. Int egr at ed s a f e t y
a mmunit ion prov ide s no f r agmentat ion ef f ec t, a nd is l a rgely inef f ec t i v e ag a ins t
f e at ure s a nd w el l t hought- ou t mech a nic a l el e ment s m a k e t he GMg w h at it is: one of
a r moured v ehicl e s. A dd - on gren a de l auncher s, on t he ot her h a nd, h av e t he dis a d -
t he mos t t echnologic a l ly a dva nced gren a de m achine guns in t he worl d.
va ntage of a rel at i v ely low r at e of f ire . In order to close t his ef f ec t i v ene ss g a p in infa nt ry w e a p ons, Heck l er & Koch h a s de v eloped a long - r a nge gren a de m achine gun w it h a l a rge indirec t a re a of ef f ec t – t he GMG in c a l ibre 40 mm x 53 (high v elocit y ).
model e x a mple gmg e: Mount ed on t rip od w i t h ref l e x sight. B a rrel l engt h: 577 mm .
Applic at ion e x a mple for t he GMg on t he “ Remot e- Cont rolled Light We apon S tat ion 200” f rom K r auss -M af f ei Wegm ann: Mount ed on t he FLW 20 0, t he GMg c a n be used on mil ita ry v ehi cl e s a s a m a in or seconda ry w e a p on. T he l ay ing s ys t e m , f iring s ys t e m a nd op t ronic s c a n be compl e t ely re mot econt rol l ed using a cont rol l er pa d. Additional information FLW 200: www.kmweg.com
40 mm systems
Upper mount: T he upper mount buf f er s t he recoil . It is equipped w it h h a ndgrip s, a second t rigger , a n a djus ta bl e shoul der supp or t, t he mount f or t he a m munit ion box a nd mount ing p oint s f or MIL-STD 1913 Pic at inn y r a il s at t he 3, 9 a nd 12 o’clock p osit ions f or t he use of op t ion a l sight s ys t e ms such a s t he Hunt IR inf r a red c a mer a (not il lus t r at ed) f rom AIM INFRAROT- MODULE gmbh. Additional information HuntIR: www.aim-ir.com f eed s ys t em: Is dri v en by t he bolt, a nd f eeds t he belt ed
oper at ing
a mmunit ion in t wo e v en s t ep s w hen t he bolt mov e s f or-
s a f e t y/f ire
elements:
T he
sel ec tor
wa rds a nd b ack . T he f eed c a n be ch a nged be t w een t he
v er , t rigger a nd ch a rging
l e-
l ef t a nd right side s of t he w e a p on w it hou t tool s.
h a ndl e a re loc at ed cen t r a l ly on t he end of t he recei v er .
gmg saf e t y f e at ure s
Safet y/fire selector lever
Loading saf e t y
Bolt re tainer
F iring pin saf e t y
Cock ing saf e t y
Barrel and cov er saf e t y
The safety/fire selector lever has the positions safe, single fire and sustained fire. In the „safe“ position the trigger and the bolt are blocked in the cocked state.
The loading safety prevents the bolt from moving forwards when the cover is open. This prevents unintentional firing.
The bolt retainer holds the bolt in position to allow any faults that arise to be rectified without danger.
The firing pin safety ensures that the firing pin can only touch the cartridge primer if the cartridge has been fed into the chamber completely.
The cocking safety automatically prevents inadvertent firing of the weapon if the bolt is not cocked all the way.
The cover can only be closed if the barrel is mounted properly and the belt is loaded on the feed side.
4 0 m m x 53
gmg: P e r f ec t e d t ec h n o lo gy.
gmg
Feed system
Reflex sight
The feed can be changed between the left-hand and right-hand sides of the weapon without tools.
Optionally available as a tritium sight or as a battery-powered sight system. Allows quick target acquisition at ranges up to 1500 m.
Shoulder support Flash hider
Height and length adjustable for optimal adaptation to the shooters body size.
Weapon carrying handle
Charging handle
Located centrally on the end of the receiver.
Tripod
The lightweight, telescoping tripod can be adjusted to a large number of different firing positions, thus providing increased tactical flexibility. Alternatively the GMG can also be mounted on an M3 tripod.
Ammunition box holder
Example of an ammunition box with 32 rounds. An ammunition box holder for 16 rounds is available as an option.
Ammunition box
The belted 40 mm x 53 ammunition is fed from a NATO PA 120 ammunition box with a capacity of 32 rounds. Optionally it is possible to feed 16 rounds (40 mm) from a .50 calibre ammunition box.
40 mm systems
Bolt system
Ladder sight
The foldable iron ladder sight allows target acquisition at ranges up to 600 m.
Trigger
Ambidextrous (receiver).
Rugged blowback bolt system, firing from the open bolt position. Here the ammunition is fed directly from the belt into the chamber. This bolt system can be used to fire all types of 40 mm x 53 cartridges.
Trigger
Right-hand side only (upper mount).
Front sight
Foldable.
Barrel
The barrel can be changed without the use of tools. A special barrel lock prevents firing if the barrel is not inserted properly.
Safety/fire selector lever
On the righthand side of the receiver. Positions: safe, single fire and sustained fire.
Handles
Ambidextrous. For easy pointing of the GMG at the target.
Ballast sack retainer
Upper mount
The legs of the tripod each have a retainer hook for the use of an optional ballast sack.
Buffers and minimises the recoil forces.
Precision aiming device
Receiver
Adjustable for elevation and windage for precise aiming. Choice of curved or straight designs available.
Made of aluminium. Combines stability with low weight.
technical data dimensions Calibre
Feed mechanism
Modes of fire
ag36 gmg E (SAM) ag36
40 mm x 46 40 mm x 53 40 mm x 46
Manual Belt feed from left or Manual right side
0-1 0-1-D 0-1
ag36 A1
40 mm x 46
Manual
(SAM) ag36 A1
(sam) glm
40 mm x 46 Weapon 40 mm x 46 (kg approx.) 40 mm x 46
Manual Upper mount Manual (kg approx.) Manual
LLG40 ** gmg E
40 mm x 46 29
Manual 12.6
glm
1 *
1 Sight Rate of fire (per min. approx.)
LS 340 LS
LS weight LS 0-1 Ammunition box Ammunition box5 0-1 LS holder (kg approx.) (kg approx.) 0-1 LS 0-1
0-1 4.3
M 20.2
Height Barrel length 2 min.approx.) (mm /max.3 (mm approx.)
Buttstock/ Sight radius Ladder sight (mm approx.) (g approx.)
Operating principle
211 252/797 222
280 215/469 280
148 700/1600 148
1500 577 2600
–/130 471 1100/130
Recoil-operated, Inertia bolt, fires from the open bolt Single loader with breech-loading, left side break-action barrel
354/– LS, R 395/640
78 1175/1505 78
– 1500 FO *
weight 3 4 Weapon Barrel length (mm (g approx.) approx.)
Length Width min./max. (mm approx.) (mm approx.)
Max. effective Buttstock range (m approx.)
dimensions Sightwith radius Height tripod (mm approx.) min./max. (mm approx.)
Width3 Height 2 min.approx.) (mm /max.3 (mm approx.
Sight1 Length min./max. (mm approx.)
2
–
354/–
120
211
280
148
1500
–/130
FO * Tripod – (kg approx.) R
395/640 Precision aiming 285/– device (kg approx.) 434/518
120
222
280
148
2600
1100/130
FO * 15
395/640 2.5
1 3
99
210
215
148
1270
–/130
99
210
215
148
1270
800/130
62 sights can be186 280sight, R = Reflex 209 1800mount and ammunition 300/– box holder Various mounted, LS = Ladder sight / 2 Without upper With upper mount and ammunition box holder / 4 With flash hider / 5 Fully charged (32 rounds)
Various sights can be mounted, LS = Ladder sight, M = Mechanical sight / 2 FO = Foldable buttstock, R = Retractable buttstock / 3 Including ladder sight All G36 buttstock types attachable / ** Series production in preparation
dimensions Calibre
gmg E
40 mm x 53
Feed mechanism
Belt feed from left or right side
Modes of fire
Rate of fire (per min. approx.)
Max. effective range (m approx.)
Sight
0-1-D
340
1500
LS, R
1
Length min./max. (mm approx.)
Width min.2/max.3 (mm approx.)
Height min.2/max.3 (mm approx.)
Height with tripod min./max. (mm approx.)
Barrel length4 (mm approx.)
Sight radius (mm approx.)
Operating principle
1175/1505
252/797
215/469
700/1600
577
471
Recoil-operated, Inertia bolt, fires from the open bolt
weight
gmg E
Weapon (kg approx.)
Upper mount (kg approx.)
Ammunition box holder (kg approx.)
Ammunition box5 (kg approx.)
Tripod (kg approx.)
Precision aiming device (kg approx.)
29
12.6
4.3
20.2
15
2.5
1 3
Various sights can be mounted, LS = Ladder sight, R = Reflex sight / 2 Without upper mount and ammunition box holder With upper mount and ammunition box holder / 4 With flash hider / 5 Fully charged (32 rounds)
subject to modification
