Polish “Neon” 5.56mm and 25mm / 40mm weapon
It looks like Poland is developing their own version of the XM29 OICW concept, according to the MSPO 2008 website. It may or may not be called the “Neon”, Google translate is not great at best of times.
What makes the Polish concept unique is that the grenade launcher part of the weapon will, at this stage in the design, be able to be removed and swapped for a different caliber, either 40mm or 25mm.
I am going to predict that they will end up with one caliber and not bother with the complexity and cost of multiple calibers.
It has the usual fire control system to program air burst grenades to detonate at a certain distance.
I will be watching with interest to see what happens with this program. Sweden and Singapore are also developing similar weapons and South Korea will be fielding the XK11 Korean New Rifle in 2010.
More information here (translated with google)
I have done my best to find accurate information about this firearm on the Polish MSPO 2008 website. I do not speak or read Polish so I had to rely on Google Translate. If I got something wrong, please correct me in the comments.


OICW = money sink.
There’s some info of the Swedish and Singaporean projects from this PDF at dtic.mil.
“Polish Neon” is actually translated to “no man” as in “no mans gun”.
(I was jk)
Jcamelo comment is total bullshit. Neon in Polish is the same as in English: neon light, neon bulb, neon lamp etc.
Yes, there are now in Poland project of combined grenade launcher /assault rifle system under code name “Neon”. The assault rifle part will be based on Mini-Beryl shortened assault rifle. Grenade launcher part will be most probably based on previous Polish handheld automatic grenade launcher projects llike Pallad M – very few know, that Poland is worldwide leader in projects of handheld automatic grenadle launchers cal. 40 mm, there were prototypes as sonn as 80`:
http://www.militech.sownet.pl/plxxi/xxi_pall.html
Grenade launcher is examined in optional calibres: 23 mm, 25 mm and 40 mm (low and medium velocity) but there are no intention to change caliber in the same weapon. Programmed air-bursting ammunition in cal. 40 mm is in final stage of development.
Wosiu, thanks for the info
Hmmmmm………another waste of money.