Waldo Dynamics - VFC/GHK M4 Enhanced "Ion" Recoil Spring Thumb rest Includes the new adjustable VELO

Includes the new adjustable VELO competition trigger

B01 Blowback Housing is precision CNC machined from aluminium 7075 for ultimate durability and quality

Chunky Base Plate

The new enhanced magazine follower is the result of our design collaboration with Deranged Designs

Waldo Dynamics - VFC/GHK M4 Enhanced "Ion" Recoil Spring Thumb rest Includes the new adjustable VELOYou asked, and we have provided; An icon in the recoil spring world for GBBRs Sometimes you just want your GBBR to snap that little bit more, so we decided to make you a spring just for that. Built at an estimated 140% strength, this gives quite a change in impulse when firing. If you were to pair this with a heavyweight buffer too you'd see a huge improvement in recoil. Finished in a distinctive purple coating, the finish not only reduces friction