Armaspec 45/90 Degree Short/Full Throw Ambidextrous Safety Selector, Blue, ARM113-BLU

One of the top upgrades you can make is by installing the Armaspec ST45 Abidextrous Safety Selector. This is a short/full throw safety which means you can set it to require either a 45 degree or 90 degree turn to engage or disengage the safety lever depending on your preferences.