Manufactured by Schweizerische Industrie-Gesellschaft, the Gewehraufsatz 97 (incorrectly named in-game as an M203 grenade launcher) is a Swiss single-shot, undersbarrel grenade launcher that can fit some be attached to most NATO class weaponry. It uses 40mm M209 grenade rounds.


The 97 is a very lethal weapon that launches grenades at a long distance, much longer than a standard thrown grenade and with a little practice, one can use it as a bombardment weapon to rain pain on unsuspecting enemies whilst being relatively safe. A word of caution though as like every explosive device if one is not careful where he is shooting one might kill himself because of the grenade's blast radius, therefore it is not appropriate nor is it wise to use it in close quarters.


Weapon upgrades texture; the launcher's name has been highlighted in red

Although named as "M203" and referred to in the code as "upgrade_m203", the grenade launcher is not the most widely recognized underbarrel grenade launcher in the world. It is instead a much more obscure military grenade launcher produced by SIG.


The Gewehraufsatz 97 can only be mounted to few NATO weapons. Upgrades might be necessary in order to mount it.

Shadow of Chernobyl

Clear Sky

Call of Pripyat


The weapon is found in all three S.T.A.L.K.E.R. games albeit uncommon.

Shadow of Chernobyl

Clear Sky

Call of Pripyat

  • The 97 can be purchased - albeit rarely - from Owl after assisting one of the factions in Morgan's weapon deal.
  • It becomes a more likely event later on, and Hawaiian may sell them on a regular basis if the player sides heavily with Freedom.
  • M209 grenades are likewise, likely only found in these traders' possession, and can be supplied by the Military in the Laundromat.
  • One can however be acquired fairly early, at the waste processing station in Zaton, provided the player can deal with the Mercs taking up residence there.


  • Despite it being the same grenade launcher, it's reload animation differs greatly on each weapon that uses it.
  • In Singleplayer, it can only be mounted on the SIG 550 and LR300, while in Multiplayer, it can be mounted on all NATO weapons (minus the FN F2000 as it has in integrated GL).
  • Since most NATO weapons can have it attached in MP, it can be changed in the weapon config file(s) to have them all mount it (and since they have the position data on them for MP, you just change the variable for it to work, and it will be inline with no glitches).
  • If you fire the grenade launcher at point-blank range, the shell explodes. This would be unrealistic as grenade shells do not detonate at point blank-range in real life as a shell needs about 10 meters for it to be armed.

The M 203 Grenade Launcher at the Zone Survival Guide

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