Takedown and Pivot Pin Spring. Mil-Spec. Made in the USA
Yep, these are them, the springs that like to launch detents as railgun like velocities into the corner of the room never to be found again. Its not the spring you lose at first, but you lose them while your down on the ground searching for that detent. These will replace the ones you lost or having an extra set is handy for when you do lose them. 2 springs included.