Springs for autocockers, including grip frame, IVG, valve and more. Plug IVGs use a shorter spring. Screw (directly into the bottom tube) use the longer, standard nelson spring.

For Mainsprings:
•Nelson pumps use Standard nelson 2 inches spring length.

•Autococker/Sniper Nelson plug IVGs use shorter springs that are around 1 5/8ths inches.

•Autococker/Sniper Nelson Screw IVGs use the 2 inch springs.