sentences:  This is intended to reduce muzzle climb when combined with the off-axis bolt travel, though it also greatly raises the sight line in comparison to the bore axis.The initial prototype model by TDI achieved a rate of fire of 1,500 rounds per minute (RPM), though this was brought down to around 1,200 rounds per minute (RPM) on the production models.The Vector is split into two major assemblies in a similar manner to the AR-15 rifle, secured together with four push pins.