Autococker 2k+ Hi Efficiency Nelson Velocity Adjustable Hammer & Spring Set

High efficiency Nelson Velocity Hammer & Spring Set. Made by 32 Degrees.  Does NOT fit pre-2000 Autococker models. Machined stainless steel components which allow precise velocity adjustments. An O-ring friction adjusting sleeve prevents velocity drift and variation. Lightened springs provided to increase air efficiency while reducing ball pinching. Improved design may vary from the picture.