BBT 130% Recoil Spring for KRYTAC Kriss Vector GBB Airsoft

After testing for a day, the 130% is far too strong of a spring for the Krytac Kriss Vector GBB. After fitting, it would cause the bolt to skip resulting in occasional double shots or dry auto firing on semi. It was worse when the mag was nearly out of gas as the bolt didn't have enough to fully cycle against the spring, which causes it to get stuck and fully empty the last of the gas. Switched back to the stock spring, as thankfully I didn't throw it away, and the issues were resolved. I wouldn't recommend anything above a 120% spring. 2 stars as it would work for a little bit on a mag with full gas, but it very quickly would result in the issues mentioned above which is a big no no with most airsoft sites being semi only - Let alone ending up wasting gas.