The Colt LE6940 Monolithic Advanced Law Enforcement Carbine, an upgrade of the 6920, have started popping up for sale. The rifle features Colt’s new monolithic upper receiver. This 1-piece receiver is machined from aluminum billet and includes a full length rail.

Photos from Gunbroker auction

The LE6940 has a 16.1″ free-floating, barrel, MaTech back-up rear iron sight and gas block mounted front sight. The rifles pictured are semi-automatic, but I am sure Colt will produce a variant with a rock-and-roll switch for law enforcement.

Bottom rail detaches from monolithic upper receiver (from Gunbroker)

The Colt name does not come cheap, although neither do monolithic receivers, and if you can find one for sale it will probably cost you $2400-$2800. It does come with two 20 round magazines and a sling … if that makes the price easier to swallow.

Some more photos: