Send in your Macdev Clone bolt and valve for spring modding / with spring carbon fiber adapter com/product/mtw-billet-series/

com/product/mtw-billet-series/

Velocity can vary per model as longer barrels will increase the maximum velocity while shorter barrels will decrease it

Most gun cases will fit perfect in the longer version of the usps flat rate medium box

This is to make sure we can do what you need

Send in your Macdev Clone bolt and valve for spring modding / with spring carbon fiber adapter com/product/mtw-billet-series/This item is to have us mod your Clone Bolt and valve. !! NOT NEW PARTS !!! You would send in just your bolt and valve. Once your order comes is we will email you the address to send your bolt to. Expect a 1 2 day turn around from when we get your bolt in. How this works You would send in your Bolt and Valve. Pictures of these parts are in the main picture Your Bolt will be machine to hold the new spring. You will get a new Pooty spring shipped back