Armaspec ST45 Short Throw Ambi Safety Selector Features The Armaspec ST45 shortens the safety selector s throw from the standard 90 degrees down to roughly 45 degrees letting a shooter flick the lever off safe with less thumb movement. That shorter arc speeds up the transition from safe to fire which matters in competition and defensive shooting scenarios where every fraction of a second counts. The selector is ambidextrous so it functions the same way regardless of which hand operates the controls. A smooth crisp lockup at both the safe and fire positions gives tactile confirmation without extra effort. Because the ST45 is built around a 45 degree fire position it is intended specifically for lowers already marked with the correct 45 degree FIRE indicator on the receiver. Installing it on a lower without that marking will leave the fire position unlabeled so shooters should confirm their receiver markings before swapping selectors. The OD Green finish lets builders match or contrast against other furniture on an AR-15 or AR-10 build. For shooters looking to speed up their presentation from safe to fire the Armaspec ST45 is a direct drop-in upgrade. Armaspec ST45 Short Throw Ambi Safety Selector Specifications Manufacturer: Armaspec Model: ST45 Compatible Hosts: AR-15 AR-10 Color: OD Green Type: Ambidextrous Safety Selector Available At: GrabAGun