REDUCING MASK 3-1/8 INCH CUT OUT

Replace the old AN Gyro with a 3 1/8'' dia. instrument. Dimensions of outer gyro mounting holes 3.375, between holes .190dia. (4).191dia inner mounting hole for 3 1/8" instrument. Made of .080 thick heat- treated aluminum. Black anodize finish.

Weight: 40 grams
Overall Dims: 4.63 X 4.63