RA TECH Top M4A1 review & Marui PX4 slide & outer barrel.

RA-Tech have a new test video:

Dear News Fairy, RA TECH Top M4A1 review , and Marui PX4 slide and outer barrel.
In this video, we show the agent product first. It’s aluminum slide and steel outer barrel for Marui PX4. Then we test the fps and rof about top m4a1.We take a full auto 2 mags shooting test, demonstrate how to disassemble the EBB, and explain why this EBB might Jam. At last, we compare the different of gear box ,hop up  and inner barrel between Marui AEG and top EBB gear box.

[youtube http://www.youtube.com/watch?v=YjThBPCrTZ0&hl=en&hd=1]

Best Regards (RA-Tech)