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Myler® Flat Shank with Sweet Iron Ported Barrel Narrow MB 43HP


Myler® Flat Shank with Sweet Iron Ported Barrel Narrow MB 43HP

Item #: X1-013669
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Our Guarantee

Myler® Stainless Steel 7" Flat Shank, MB 43HP Narrow High Ported Barrel, Level 2-3. For Western disciplines.

The MB 43HP does not rotate onto the tongue, but instead sits solidly across the bars and lips of the horse’s mouth. The port is narrower than a Level 3 mouthpiece, but still offers room for the horse’s tongue to pass under the bit.

Because the port is narrow, when the reins are engaged, the horse will feel a slight pressure on the outside edges of the tongue as a reminder rather than a strong reprimand.

The port on this mouthpiece is 1 ?" high, so it could apply some palate pressure. Sweeti mouthpiece oxidizes and encourages salivation.

Key features:

  • Independent Side Movement™.
  • Sweet iron mouthpiece.
  • Curved mouthpiece does not pinch lips and bars.
  • Copper inlay.


  • A horse with a thicker tongue or lower palate is more likely to feel some palate pressure. For the same mouthpiece but with little to no palate pressure, see the MB 43LP or MB 43MP.
  • For less tongue relief and little to no palate pressure, see the MB 27LP or MB 27PB.
  • For more tongue relief and little to no palate pressure, see the MB 41PB.
  • For the correctional version of this mouthpiece with Independent Side Movement, see the MB 47PB.
  • For the correctional version with no Independent Side Movement see the MB 47.

The 7" Flat Shank is stainless steel and curved slightly back towards the horse and has a flat-top purchase and a rein ring. The mouthpiece has a fixed attachment. The Flat Shank has the patented Independent Swivel Cheek, where the purchase, mouthpiece and shank all move independently of each other. The purchase is slightly angled away from the cheek to avoid rubbing. It has an indirect (curb) rein action designed to be used with a curb strap which attaches to the purchase. The flat shank uses the combination of the fixed cheek and fixed rein to apply pressure to the mouth, chin and poll.

Action: Indirect.

Degree of leverage: moderate.