The Battle Arms Ambidextrous Safety Selector is also one of our favorites. You can switch out the levers to customize it to your personal tastes and it is big enough to easily operate with gloves on. We have never had the torx bolts that hold the levers on come loose with many different guns. We used a curved Magpul Moe Trigger Guard to make room for gloved fingers and to give the close to mil spec lower a modern look.