Gag Bit

The gag bit is a type of bit for a horse. With two sets of reins, the gag bit gives a rider the ability to use either a standard direct action or a gag action. In this, the gag bit is related to a Pelham bit and a double bridle. Unlike these, however, the gag bit has no curb strap.

Some styles of gag bit are integral to a special bridle, known as a gag bridle; others are used with a standard bridle. Inside the horse's mouth, the gag bit may be jointed like a snaffle bit or smooth like a Mullen mouth bit.