Prism Device Primary Arms SLx 3x Micro Prism iR Red ACSS Raptor 5.56/.308 yards

SLx Prism Sights combine the fast target acquisition of a red dot, the precision of an optical scope, and compact size. They are popular among astigmatic shooters and those seeking a versatile short- and medium-range optic.

The American brand Primary Arms, known for high-quality optics, red dots, prism sights, and accessories, has captured the U.S. market with excellent price-to-quality ratio. Most products come with a lifetime warranty, demonstrating reliability. Primary Arms is also known for its proprietary ACSS reticle, helping beginners quickly improve shooting skills.

Primary Arms — American optics with a lifetime warranty

Features of the Primary Arms SLx 3x Micro Prism ACSS Raptor 5.56/.308 prism sight:

• Compact size and lightweight
• multi-coated optics for improved light transmission
• patented ACSS Raptor reticle for 5.56 and .308 ammo, measured in yards
• large exit pupil (69 mm) providing a generous eyebox without precise alignment
• field of view 12.6/100 m for aiming at moving targets
• Daylight Bright mode for use in bright sunlight
• 13 daylight + 3 night brightness levels
• quick focus adjustment ring
• red illuminated reticle
• durable sealed construction resistant to fog, rain, and shocks
• 0.25 MOA audible and tactile turret clicks for precise zeroing
• long battery life CR2032 — up to 29,000 hours at medium brightness
• AutoLive motion sensor for automatic on/off
• optional 8-height mount adjustment (Absolute Co-witness and Lower 1/3)
• high mount weighs 225 g
• etched glass reticle suitable for astigmatic shooters, usable without illumination
• large 80 MOA adjustment range horizontally and vertically
• multi-coated anti-reflection lenses
• hard-anodized anti-glare finish
• reinforced Picatinny mount and protective caps included
• lifetime warranty

Primary Arms SLx 3X MicroPrism is a compact 3× prism sight from the respected SLx line, known for reliability and excellent value. Field-tested on SCAR 17 .308 Win — over 7,000 rounds fired without damage. Features improved ACSS Raptor 5.56/.308 etched on premium low-dispersion glass and reinforced mount.

SLx 3x allows easy target identification at medium distances and fast both-eye shooting at short range. Astigmatism often blurs red dot points, making aiming difficult. Prism sights solve this problem, offering a BDC reticle and clear parallax-free image, precise medium-range shooting, and binocular aiming.

Primary Arms SLx 3X MicroPrism — perfect for astigmatic shooters

The sight has a sealed aluminum IP67 body, large eyebox (69 mm) for quick aiming without exact alignment. ACSS Raptor 5.56/.308 etched reticle visible without illumination. Metric range scale under reticle for distance and accuracy. Red reticle (horseshoe and chevron) with 13 daylight + 3 night levels. AutoLive extends battery life — up to 29,000 hours and automatically toggles illumination on movement.

ACSS Raptor reticle features a thin central chevron surrounded by a thick horseshoe, with range and drop marks. Intuitive and functional for dynamic short-range and precise medium-range shooting. Metric scale simplifies reticle use.

SLx 3X MicroPrism has a sturdy aluminum mount with steel components for stable zero retention. Additional risers allow 8 mounting height combinations.