CS-M1, new, haven't used it yet for my production. It's a very small 4" boom mic with spectacular sound and clarity.

Description from BHPhoto:

The CS-M1 is the latest addition to the Sanken Production microphone range and sets new standards of sound quality for a short shotgun mic. From professional boom pole drama and film location recording to DSLR camera mounted applications, the CS-M1 delivers pristine quality audio with sharp directivity.

At only 4” in length and weighing less than 2 oz., the unobtrusive CS-M1 can be used in tight mic situations to faithfully capture the story. Like all Sanken shotguns it is rugged and dependable with a wide range of applications where sound clarity and noise rejection are critical requirements.