unknown Modification of ZELJEZARA SISAK

[Zorro]

ZELJEZARA SISAK, unknown modification (Croatian Grenade):

Hi Guys,

does somebody of you know more details on the grenade on the right side of Foto 1-1?



The well known ZELJEZARA SISAK grenade has as shown on the left of Foto 1-1 usually
a pipe-endplug (see Foto 1-4 and 1-5), drilled with a 6mm hole for a slowburning timefuze
with a No.8 cap on the end.



This modification on the right side carries as a bushing that reduces the screw to the size
of the M75-grenade-Fuze on one hand and is closed on its bottom-side to prevent that
moisture and dirt get into the grenade (Foto 1-2). The adapter-bushing is not screwed in,
its pushed + glued in and fits very tight (Foto 1-3).



The fact that an factory-made plastic-adapter-bushing for accepting an grenade fuze is
something quite uncommon and the perfect match of the parts let me believe that this is no
field-improvisation but an factory-inprovement of the hasty made first production run which
was evtl. still on stock? Any reliable information would be very much appreciated.

I dont believe that the fuze is authentic, since these white-plastic-pattern of the fuzes is
a practice-fuze which did show up in the last years, the authentic pattern should be yellow
for the modified (live-made-practice-type) or evtl. black for the copies made in the new factories.
Since they have identical threads, I kept it for showing the principle on the fotos.




Thank you for any information.


PLease note: all items which are shown are 100% INERT and FFE and had been received like this already.


Regards,

Ralf

 

[EOD]

There are some points to be observed here:
- The green "busing" looks like a protective cap for fuzes that just fit (or was altered to do so) the original threaded fuze well.
- The fuze here is a practice fuze and is made in 2010, what kinda contradicts the use with a civila war improvised grenade of the early 1990s

It can well be that somebody "enhanced" the grenade by adding a fuze that was on hand and is a regular supply item for training (maybe used).

 

[Zorro]

Hello EOD,

thank you for the idea with the protective-cap for the Practice-grenade-fuzes.

I believe that this is the solution which was used here.

Unfortunatly I have only fotos of this cap, so that I cannot try if it would really fit that way,
and this-one doesnt move-out anymore.

Here at least the fotos:
View attachment 87500View attachment 87501View attachment 87502View attachment 87503


Thank you for confirming my information on the white-practice fuzes, didnt have a
yellow-one / black-one on hand sorry.

The last topic:
Modification in the factory as improvement of existing stocks would be still interesting.
Since at the time many of the authentic yellow practice-fuzes had been altered to
live-fuzes, due to luck / shortage of live fuzes. So the transit caps would have been
available for use. Sure it might be also just an induvidual job ... .
Maybe someone can tell if he did ever hear about some alteration like this?

Thanks fo any further information.

Best regards,

Ralf

 

[Zorro]

Hi Guys, also here the problem fixed with the missing fotos - text is identical:

Hello EOD,

thank you for the idea with the protective-cap for the Practice-grenade-fuzes.

I believe that this is the solution which was used here.

Unfortunatly I have only fotos of this cap, so that I cannot try if it would really fit that way,
and this-one doesnt move-out anymore.

Here at least the fotos:






Thank you for confirming my information on the white-practice fuzes, didnt have a
yellow-one / black-one on hand sorry.

The last topic:
Modification in the factory as improvement of existing stocks would be still interesting.
Since at the time many of the authentic yellow practice-fuzes had been altered to
live-fuzes, due to luck / shortage of live fuzes. So the transit caps would have been
available for use. Sure it might be also just an induvidual job ... .
Maybe someone can tell if he did ever hear about some alteration like this?

Thanks fo any further information.

Best regards,

Ralf​