10 Best AR 15 scopes 2025 in the United States

The ATN Thor 5 LRF is a high-tech thermal scope designed to enhance shooting performance in low visibility conditions such as night or fog. It features a 4-16x magnification range suitable for various distances, and a 320x240 sensor resolution paired with a bright OLED display provides clear, detailed images with rich colors, making target spotting easier in any light. The built-in laser rangefinder (LRF) allows quick distance measurement to targets, improving shooting accuracy.

The Vortex Optics Crossfire II 4-12x50 AO is a solid choice for AR-15 users who want a versatile scope suitable for hunting and target shooting at various distances. Its 4-12x magnification range offers flexibility, allowing you to zoom in for precision or keep a wider view when needed. The large 50mm objective lens helps gather ample light, which means brighter and clearer images, especially in low-light conditions like dawn or dusk. The Dead-Hold BDC reticle is designed to simplify aiming by providing built-in holdover points, so you don’t have to guess your bullet drop at different ranges, which is especially helpful if you’re hunting or shooting at varying distances. Eye relief is generous and the scope has an ultra-forgiving eye box, making it easier to quickly find your sight picture without worrying much about exact head positioning.

The Vortex Crossfire II 3-9x40 is a solid choice for an AR-15 scope, especially for those interested in hunting or general shooting. Its 3 to 9 times magnification offers a flexible zoom range suitable for medium-distance targets, while the 40mm objective lens strikes a nice balance between brightness and compactness. The V-Brite illuminated V-Plex reticle helps with quick target acquisition in low-light situations, thanks to a battery-powered brightening dot without overwhelming complexity. The scope provides generous eye relief and a forgiving eye box, making it easier to get a clear sight picture quickly, which is important for fast-paced shooting. The fast focus eyepiece is handy for sharpening the reticle with minimal effort.