Brownells OD-12 Heavy-Duty "Over Pin" Kit

High-quality coil springs are precision wound with controlled tension to ensure smooth operation without binding under compression. Over-Pin springs are specifically engineered to function over gun pins and plungers. Over-Pin kits include 12 coil springs in 7 different sizes, designed and sized to operate without binding over pins ranging from 3/32 inches (2.4mm) to 3/16 inches (4.7mm). Each spring is 12 inches (30.5 cm) in length. Kit #2, OD-12, is designated as heavy-duty. High-tensile spring wire