PEW Science Omega Metric study during the subsonic 9x19mm combustion regime While using the HK SP5-A2 and SP5K-PDW weapon devices is underway. Observe that the PEW Science HK SP5-A2 possesses an 80-deg locking piece in its bolt provider group, which can result in lower bolt copyright team rearward velocity than units possessing regular angle lockin… Read More