The number of coils in this case actually has nothing to do with the strength of the spring, and the reason the current spring has three coils instead of two, is too simply take up the extra side-to-side space that was created by using a smaller diameter wire for the current trigger spring. ![]() The reason the two coil spring was stronger, is because they were made from larger diameter wire. Then, FN went to the lighter weight 3 coil spring in order to keep the pull down because they added a sear lever spring that kept the paddle-end (firing pin block portion) of the sear lever blocking the firing pin until the trigger was pressed. ![]() With all due respect sir - the original 2 coil spring is stronger than the 3 coil spring, and FN used the 2 coil spring until they introduced the un-need firing pin block in the late 80s.
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