I know the 6940 has a monolithic top, but can the quad rail be switched out? I want something a little longer. Looking at the Larue PredatAR, Stag and a few others already set up with longer rail. But I've always wanted a Colt. I
Originally Posted By RightSide:
I know the 6940 has a monolithic top, but can the quad rail be switched out? I want something a little longer. Looking at the Larue PredatAR, Stag and a few others already set up with longer rail. But I've always wanted a Colt. I
A monolithic upper is where the receiver and rail are all one piece.
The rail cannot be taken off the receiver.
the receiver and railed handguards are machined from a single piece of aluminum.
you can't replace it.
if you want a colt, get a 6920/6721/6720 and install the rail you want.
the LE6920 Socom II and the LT6720-R come with a longer non-monolithic rail from the factory.
The rifles you mention are not monolithic, they have seperate quad rails from the receiver. Just get a 6920 and add the rail of your choice. My 6920 has a Daniel Defense RIS II which is about 5 inches longer than the 6940 rail
I think you might also be confused about the nature of a "quad rail." If the 6940 only had the top rail for the monolithic receiver, you'd be replacing the tri-rail, like on a Bushmaster ACR (sides and bottom). As the 6940 is, the top and sides are all one piece with the receiver, the bottom section is removeable for maintenance or M203 mounting
