Test video from RA-Tech for aluminium bolt carrier

RA-Tech have sent in a test video for their new aluminium bolt carrier:

Dear Arnie, Good day, and I am writing this email for our new product.
RA-TECH has already released new Aluminium nozzle bolt carrier for WA,
Inokatsu and Prime used, and below is our test video.

[youtube http://www.youtube.com/watch?v=H_QDgIyjG2A&hl=en]

(RA-Tech)