Myler Kimberwick with Stainless Steel Forward Tilt Ported Barrel MB 36Myler Stainless Steel Kimberwick, MB 36 Mullen Forward Tilt Low Ported Barrel, Level 2 3 The MB 36 is a Myler alternative to the traditional mullen, but it has a wide low port that allows the tongue to pass under it comfortably. The port is 1" high, and tilted forward at a 45 angle, allowing just enough room for the horses tongue to elevate slightly and swallow, but not high enough for palate pressure. When the reins are engaged, the MB 36 applies