Here's a test of the ACE1 Arms KRISS Vector GBB Magazine Release. Whilst it was designed for the KWA KRISS Vector GBB, the test was done using a REAL STEEL KRISS Vector. The result? You'll be surprised... "We do realize that the KRISS Vector has a reloading problem. Shooters can only reload their magazine by their left hand. Meanwhile, they also have to hold the magazine on the left hand too. This makes the reloading speed pretty slow and inefficient.