RA-TECH AW super recoil buffer kit for WA & WE

RA-TECH have released new upgrade part for the WA and WE systems:

Dear Arnie, RA-TECH already released new up grade parts for WA and WE system used, and below link is our test video.

[youtube http://www.youtube.com/watch?v=am4iwkTZeo8&hl=en]

(RA-TECH)