A original Smart Parts Freak Aluminum Barrel Insert.
Freak Aluminum Barrel Inserts will fit in any Standard Freak Back or Freak Jr Back. Having the ability to change your back bore and get the perfect paint to barrel match is essential for obtaining high accuracy. Getting a variety of Freak Back Inserts will allow you to perfectly match your barrel to your paint every time!
*** There is a small blemish in picture #6