Airsoft Taiwan gave us a heads up on the new products that came out from RA-Tech. The first one is the PPQ which is first presented in the video below. Then a new steel outer barrel for the WE Airsoft M4 Series. The RA-Tech version is heavier due to its steel construction; one piece as compared to the 2-piece setuop of the original WE; a little bit longer enabling you to install a longer inner barrel; and comes with markings whereas the WE one doesn't.