Maximize your SFIC Core Locks’ performance with SFIC Falcon Springs for A2, A3, and A4 pinning systems. Each pack contains 100 pieces, with a diameter of .108″ and a length of 3/8″ (Standard Falcon Length but can be used for any SFIC Core). Specifically designed for use with SFIC A2, A3, and A4 systems, these springs are made from high-quality grade A Phosphor Bronze and proudly manufactured in the USA.