Custom GHK M4 GBB AAC300 Preview
OptimusPrime
23 Mar 2015
A preview of the new custom GBB rifle from RA-Tech and assembly of their Challenge Package for those not familiar with this challege kit yet... "RA TECH releases a new custom product, the Custom AAC 300 from GHK M4. This time, RA TECH assembles the Challenge package for you. Watch this video and find out how to do it on your own."