RA-TECH new M4 bolt carrier blowback test video

RA-Tech have sent over the test video for their new M4 bolt carrier:

RA-TECH New & Reinforced M4 CNC Steel Bolt Carrier Blowback Test Video:

Both complete BC and BC are restock.

http://en.ratech.com.tw/english/index.php?option=com_content&view=article&id=170:rag-we-088&catid=27:ra-gas-series&Itemid=119

http://en.ratech.com.tw/english/index.php?option=com_content&view=article&id=148:rag-we-066&catid=27:ra-gas-series&Itemid=119

The Aluminum nozzle uses new and reinforced valve.

http://en.ratech.com.tw/english/index.php?option=com_content&view=article&id=169:rag-we-087&catid=27:ra-gas-series&Itemid=119

http://en.ratech.com.tw/english/index.php?option=com_content&view=article&id=1064:rag-ksc-66&catid=45&Itemid=159

(RA-Tech)