Primary Arms 4-14 X 44mm FFP Riflescope - ACSS HUD DMR 5.56 Reticle 4-14X MAGNIFICATION: The front focal plane design keeps the ACSS HUD / DMR 5.56 reticle the same size through the scope's entire magnification range of 4x through 14x. ACSS HUD DMR 5.56 NATO RETICLE: This revolutionary reticle features quick ranging, wind holds and leads using 5.56 NATO chambered rifles. ILLUMINATION: The reticle illumination is powered by a single CR2032 battery and has a total of 6 brightness settings with an "off" notch between each setting. RUGGED AND DURABLE: Constructed of aluminum with a matte black finish, this tough scope is shockproof, waterproof, and nitrogen purged. 3-YEAR WARRANTY: If a defect due to materials, workmanship, or normal wear and tear has caused your product to malfunction, Primary Arms will either repair or replace.