Reply With QuoteOk ok... maybe I fail to understand something. But as I see it:
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it doesnt use the bottom rail, because there is no bottom rail in the hand guard that goes with the UGL.
the idea was to have the UGL mounted as close to the barrel as possible.
Ok ok... maybe I fail to understand something. But as I see it:
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You can probably remove the bottom rail...
To me it looks like whole handguard with bottom and side rails is a 1 piece that can be taken off, and replaced with anything that fits the socket.
isnt that pic a Prototype mock up and not close to a production gun? i bet they make the lower rail removable.
exactlyOriginally Posted by Majster
the UGL is not mounted to any rail system but to the same pin that keeps toghether the barrel and the upper receiver and on the opposite side another pin at the very begining of the upper receiver. and there's another sort of hanguard dedicated to work with the launcher with no bottom rail between both. the purpose is to have the UGL mounted as close as possible to the barrel.
Last edited by ~~~~; 12-01-2010 at 06:45 PM.
Yes, that's what I was thinking. What it means is, that to attach GLA you have first to remove "handguard" with rails. Like in F2000 (only?).
All depends on customer requirement. If it's specified that "GLA must fit every standard issue rifle, be attachable in the field without use of special tools, in less than n seconds", then there could be a problem...
Last but not least - GLA is MSBS rifle specific. To sell it worldwide, you will still need Picatinny version. This looks like cool GLA - it could sell.
Last edited by kraftwerk; 12-01-2010 at 11:04 PM.
That's a little strange concept. What if you wanted to mount the GL on different rifle with underbarrel p-rail..?
Well... a huge + in this case is that GL is close to barrel. That way the weapon itself remains compact, and aiming is easier. Its impossible with p-rail.
And to me (im no expert) it looks like you need additional sights for UGL on picatinny rails. With GL placed close to barrel, it might be possible to integrate both.
I have discussed that versatility issue with designer - if the thing works ok, it shouldn't be a problem to add an p-rail interface to the proven launcher. But the aim at the moment was to keep it slim, light and close to the barrel.
Then the different mounting base will be made. Just like that. It is not surprising in the world of firearms, the different mounting base was developed for the GPBO-40 too. You know, real engineers do their job. And if you desperately looking for some anti-Polish argument like "taking an example from foreign solutions", take a look at the FN GL1 grenade launcher designed for FN F2000 assault rifle and the redesigned version FN FN40GL for SCAR
Good for them. My point is that (from what I could tell looking at released CAD pictures) right now it looks like this version is dedicated only to MSBS rifle. If they want to design a kind of adapter for underbarrel p-rail the whole thing will be mounted pretty far from the barrel. And if the idea is to design a different body for underbarrel p-rails then they will end up with 2 completely different production version of the same GL. I would say that complicates the whole thing a little bit.
Having GL close to the barrrel is advantage of this concept but on the other hand you cannot mount MSBS GL on any other rifle.
Last edited by tony6; 12-08-2010 at 12:36 PM.
Yes. In the end it depends on customer requirements. FN is doing F2000 for Dutch Army spec (uses rifle specific GLA), and SCAR for USMC spec (SCAR accepts any P-rail compatible GLA).
MSBS, as I understand, is in the moment R&D project. What are the chances, that when (if?) Polish Army will decide to buy new rifle, requirements will be favourable for MSBS?
Hopefully yes (if CZ can beat FN for Czech Army...
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I got a question related to the design: how do they want to manufacture pistol grip and trigger guard group? Did they specify that already or not yet? I'm asking because from released preliminary CAD pictures it looks like the pistol grip, trigger guard and lower receiver are one element.
The trigger group (or lower receiver call it what you will) in the present design will be one-piece element.
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