Designed for AR and AK pattern rifles. The 4x24 models feature a Bullet Drop Compensating (BDC) reticle designed to accommodate a variety of ammunition including .223/5.56, .308WIN, .300BLK, and 7.62x39. Supplied with Low-profile mount and Lower 1/3 Co-Witness Mount 10 stage digital brightness control Exposed 1 MOA click turrets High Quality Aluminum Construction Fixed parallax at 100 yards Auto shut off and shake awake Ideal for use on ARs and hunting rifles Compatible With Micro T-2 Footprint Mounts Nitrogen purged. Shockproof. Waterproof. Fog proof. All caliber rated Hawke Two Year Warranty.