Prismatic device Primary Arms SLx 3x Micro Prism iR Red ACSS Griffin X MIL

Primary Arms SLx 3x Micro Prism iR Red ACSS Griffin X MIL combines the fast target acquisition of a red dot with the precision of an optical sight and the compactness of a prism device. Ideal not only for users with astigmatism but also for shooters seeking a versatile optic for short- and mid-range engagements.

Primary Arms is a U.S. optics brand renowned for durable and high-quality prism devices, red dots, and rifle scopes offering an exceptional price-to-performance ratio. Most of its products come with a lifetime warranty, proving the company’s confidence in its craftsmanship. The patented ACSS reticle system helps shooters of all skill levels quickly improve precision and consistency.

Primary Arms — American optics with a lifetime warranty

Main features of the Primary Arms SLx 3x Micro Prism ACSS Griffin X MIL:

• Compact and lightweight design,
• multi-coated optics for enhanced light transmission,
• high-contrast red illumination,
• patented ACSS Griffin X MIL reticle calibrated in mils,
• long 67 mm eye relief and wide eyebox for comfortable shooting,
• 12.6 m / 100 m field of view for tracking moving targets,
• Daylight Bright illumination for use in full sunlight,
• 13 brightness settings + 3 for night vision,
• quick-focus diopter adjustment ring,
• sealed housing resistant to fog, rain, and impact,
• 0.25 MOA tactile turret clicks for precise zeroing,
• up to 29,000 hours of runtime on a CR2032 battery,
• AutoLive motion sensor for automatic on/off,
• 8 mounting height options (Absolute Co-witness, Lower 1/3),
• only 225 g with the high mount,
• etched reticle — ideal for astigmatic users, works without illumination,
• 80 MOA total adjustment range,
• anti-reflective multi-coating and matte anodized finish,
• reinforced Picatinny mount included,
• Lifetime warranty.

Primary Arms SLx 3X MicroPrism is a compact 3× prism optic from the trusted SLx line known for reliability, innovation, and outstanding value. Tested on a SCAR 17 (.308 Win) with over 7,000 rounds fired, it retained zero flawlessly. Featuring an improved ACSS Griffin X MIL reticle etched on low-dispersion glass, AutoLive motion activation, and a reinforced mount base for maximum stability.

The SLx 3x allows easy target identification at mid-range and both-eyes-open shooting at close range. It eliminates the blur common in red dots for astigmatic users while providing a parallax-free image and high precision.

Primary Arms SLx 3X MicroPrism — the perfect device for astigmatic shooters

Its sealed aluminum body resists fog, rain, and recoil. The large 68 mm exit pupil and generous eyebox allow fast alignment without perfect cheek weld. The ACSS Griffin X MIL reticle provides range estimation and accurate holds up to 600 yards. The illuminated chevron and horseshoe offer 13 daylight and 3 night vision settings, while the AutoLive system extends battery life to 29,000 hours by automatically powering down when idle.

The ACSS Griffin X MIL system offers a clear, intuitive layout with a central chevron and horseshoe for rapid short-range acquisition and precise medium-range accuracy. Its mil-based scale simplifies ballistic adjustments.

The Primary Arms SLx 3X MicroPrism features a rugged aluminum mount with steel reinforcements, ensuring zero retention and reliability. Optional risers allow eight height configurations for perfect alignment with any platform.