M4 Product Improvement Program Forward Rail Assembly Kit progress?

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Originally Posted by USGuns

Very nice!

What's interesting is they appear to now be open to something like Keymod:

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There's really no telling.

There is also mention of enhanced reliability in the RFI. I wonder what the chances are of a new upper being submitted. It wouldn't surprise me to see a whole upper being submitted.

Look I have this upper that has everything you want, it also costs about the same as the M4A1 upper plus all those accessories.

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Originally Posted by sinlessorrow

There's really no telling.

There is also mention of enhanced reliability in the RFI. I wonder what the chances are of a new upper being submitted. It wouldn't surprise me to see a whole upper being submitted.

Look I have this upper that has everything you want, it also costs about the same as the M4A1 upper plus all those accessories.

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I see this as a perfect opportunity to lengthen the gas system with that new upper.

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Originally Posted by BufordTJustice

I see this as a perfect opportunity to lengthen the gas system with that new upper.

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Honeslty I wouldn't be opposed to a middy.

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Originally Posted by sinlessorrow

There's really no telling.

There is also mention of enhanced reliability in the RFI. I wonder what the chances are of a new upper being submitted. It wouldn't surprise me to see a whole upper being submitted.

Look I have this upper that has everything you want, it also costs about the same as the M4A1 upper plus all those accessories.

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Their would be 0 chance, they are trying to pass this through appropriations not as an upgrade but rather a maintenance choice. The cost in replacing all the uppers would never fly.

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Originally Posted by sinlessorrow

Honeslty I wouldn't be opposed to a middy.

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Especially not with M855A1. It would run bone dry with an H3 buffer on that mess.

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Originally Posted by Digital_Damage

Their would be 0 chance, they are trying to pass this through appropriations not as an upgrade but rather a maintenance choice. The cost in replacing all the uppers would never fly.

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That makes sense. I've often heard modern rails would actually cost less than the KAC RIS.

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Originally Posted by sinlessorrow

... I wonder what the chances are of a new upper being submitted. ...

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Anything is possible I suppose, but in the solicitation itself it says:
" The M4A1+ components will seamlessly integrate with the current M4A1 Carbine (to include but not limited to the barrel, gas tube, upper receiver, bolt and bolt carrier) "
Sounds like those are the minimum current components they want to retain?

I would love to see a middy system, along with a new forend. Preferably something lighter than the RIS II, but it would still need to be strong enough.
I feel like swapping to keymod or m-lok wouldn't fly with the army though, given their current inventory of 1913 accessories and that they'd have to purchase a heck of a lot of rail sections.

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Originally Posted by SilverCat

... I feel like swapping to keymod or m-lok wouldn't fly with the army though, given their current inventory of 1913 accessories and that they'd have to purchase a heck of a lot of rail sections.

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From the solicitation, it seems like that is what they are asking for?
"Mounting surfaces: The improved extended forward rails shall have sufficient removable mounting surfaces of varying lengths (e.g. 3 quote mark , 5 quote mark , 7 quote mark ) to allow selective, simultaneous mounting of standard U.S. military accessories (e.g., lasers, illuminators, slings, bipods, vertical grips/grip-pods, etc.). "