This Primary Arms rifle scope is part of the SLx optics line. SLx optics built their reputation for innovation, reliability, and value. All SLx optics undergo rigorous field-testing during development to best serve you in any environment. The SLx 1-6x24mm SFP Gen IV Rifle Scope is the latest iteration of their best-selling carbine optic, incorporating a fully upgraded optical system, an integrated dovetail throw lever, and all-new ACSS reticles. With superior glass clarity and swift magnification controls, you'll always have the power to identify, range, and engage your targets with unrivaled precision. This 1-6x low power variable optic features the ACSS Aurora reticle that utilizes meter-based BDC (ballistic drop compensation) holdovers calibrated for 5.56 and .308 cartridges out to 800 meters. Like all Primary Arms Optics products, this rifle scope comes with an industry-leading lifetime warranty and commitment to customer satisfaction.