Equipment Mounts › Heavy Irons Kit - Vertical Image 1 of 2 Image 2 of 2 Heavy Irons Kit - Vertical $325.00 Designed to fit a standard Pro-Bar and 8-12lb sledge. Lower pocket fabricated from 3/16 aluminum. Quantity: Add To Cart Added! Designed to fit a standard Pro-Bar and 8-12lb sledge. Lower pocket fabricated from 3/16 aluminum.