Primary Arms SLx Compact 4-16X44mm FFP Rifle Scope - Illuminated ACSS Athena BPR MIL Reticle

This rifle scope is part of the Primary Arms Optics SLx® line. SLx optics built Primary Arms’ reputation for innovation, reliability, and value. All SLx optics undergo rigorous field-testing during development to best serve the marksman in any environment.

The SLx® 4-16x44mm FFP Rifle Scope extends the trusted SLx optic line into the mid-power precision space, delivering a versatile magnification range in a surprisingly compact footprint. At just 10.1 inches in length, this scope is purpose-built for agile, low-profile setups—ideal for designated marksman rifles, hunting carbines, or compact bolt guns. Its streamlined form factor doesn’t come at the cost of performance, making it an excellent option for shooters who demand long-range capability without adding bulk.

At the heart of this optic is a First Focal Plane (FFP) optical system, ensuring consistent subtensions and accurate holdovers at any magnification. Paired with high-performance optical glass, the 44mm objective lens delivers excellent light transmission and clarity across a wide field of view. The eye box is forgiving and comfortable, allowing for quick target acquisition and positive engagement in both fast-paced and precision-focused shooting scenarios. An adjustable parallax (from 10 yards to infinity) further refines clarity and accuracy at all distances.

The ACSS® Athena BPR MIL reticle is a purpose-built MIL-GRID style reticle, designed for extreme precision at extended distances. Unlike traditional crosshairs, it uses a chevron tip at the center aiming point, offering an infinitely precise point of aim that doesn’t obscure the target. The reticle’s center area features fine 0.1 MIL subtensions, while the MIL Grid offers 0.5 MIL dots, extending 15 MIL down and 6 MIL to each side. This reticle also features our built-in target ranging system, which can be used to instantly estimate a target’s distance, by height or width, from 400 to 1000 yards.

Built to Primary Arms' rigorous SLx standards, this scope is shockproof, waterproof, and fog-resistant, with internals tested through extensive live-fire use. Backed by an industry-leading Lifetime Warranty, the SLx 4-16x44mm FFP gives dependable performance and refined capabilities, whether for hunting, competition, or basic marksmanship.

Features:

• 4-16x magnification range for versatile mid- to long-range performance
• First Focal Plane (FFP) reticle ensures accurate holds at any zoom level
• Compact 10.1" design for streamlined rifle setups
• Premium glass for edge-to-edge clarity and strong low-light performance
• Forgiving eye box for fast, comfortable target acquisition
• Shockproof, waterproof, and fog-resistant
• Adjustable parallax from 10 yards to infinity
• Backed by Primary Arms’ Lifetime Warranty