Primary Arms SLx HUNTER™ 3-9x50 SFP Rifle Scope - Duplex Reticle

Manufactured by Primary Arms
MPN: 610171
Manufactured by Primary Arms
3 Reviews
$99.99 $249.99

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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.

Crafted for the true outdoorsman, the SLx HUNTER 3-9x40mm and 3-9x50mm SFP Rifle Scopes improve your visibility and precision without compromising on weight. The 3-9x magnification range, combined with high-quality lenses, offers a clean, crisp image for optimal performance.

Designed by one of America’s leading optics manufacturers and built in the Philippines, the Primary Arms Optics SLx HUNTER series combines high-quality materials and machining at an unbeatable value. Both the 3-9x40mm and 3-9x50mm scopes offer the same quality feature set, including high-clarity lenses, a lightweight 1-inch body, and bold Duplex-style reticle.

The 40mm model offers superior mobility for extended hikes, weighing only 15.3 oz. while the 50mm models offer slightly enhanced exit pupil and light transmission, weighing only slightly more at 18.2 oz.


  • 3-9x Magnification
  • 50mm Objective lens
  • Duplex-style reticle
  • Second focal plane design
  • Black anodized aluminum body
  • Durable construction that can handle heavy recoil
  • 1" Tube diameter
  • Total length: 12.64 inches
  • Total weight: 18.2 ounces

Like all Primary Arms scopes, each optic is hand-inspected for quality and performance at Primary Arms’ Houston headquarters by trained optics staff. Unlike overseas brands, you can be confident in the internal mechanisms that allow a scope to last a lifetime whether you mount it on a lightweight plinker or a hard hitting magnum caliber.

Every Primary Arms Optics product comes with a comprehensive lifetime warranty, so you can count on them for your most challenging hunts. If you aren’t completely satisfied, the in-house customer service team is here to help.

SLx optics built the reputation for innovation, reliability, and value. All SLx products undergo rigorous field-testing during development to best serve you in any environment.

Over the past decade, SLx optics have been one of the most popular choices for new and experienced marksmen alike, earning a reputation for superior performance at any budget.

As part of the SLx optics line, the SLx HUNTER line shares this commitment, bringing you superior materials, machining, and design at an unbeatable price.

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BrandPrimary Arms
Click Value1/4 MOA
Exit Pupil DiameterLow: 16.67mm / High: 5.60mm
Eye Relief3.50 in
Field View 100Low: 33.81 ft / High: 11.26 ft
Focal PlaneSecond Focal Plane
Length12.64 in
Magnification3X - 9X
Mount Compatibility1 in
Objective Diameter50mm
Optic SeriesSLx
Reticle TypeMOA
Total Elevation Adjustment80 MOA
Total Windage Adjustment80 MOA
Tube Diameter1 in
Turret Features
Weight18.2 Oz
  • Learn More About The Primary Arms SLx HUNTER Scopes
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

3 reviews

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  • 1 star
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Crisp Views

by -

It does have a very crisp view, have not used on a platform yet. I did not expect a 50mm lens to have the "advertised illumination", so I am not disappointed that it IS NOT Illuminated, that is a misprint in the Specifications. I did preorder the 4-12x50 Primary SLx also, pretty sure it also will not be illuminated.

Looked good but did not mount

by -

I returned this but it looked cool. Had clear view good zoom but no lense caps even though the manual said it did. Customer service made a good attempt to remedy but I had already sent it back.

Primary Arms 3-9X50 SFP RIFLE

by -

Primary Arms has everything you need and more. If you’re on a budget or going all out Primary has exactly what you need to complete you build. This will be my 4th scope from Primary Arms and I am extremely happy with this one. Mounted on a 18” .308 Aero build paired well with my setup. The glass is really clear and simple crosshairs made sighting in really easy. 25 rounds later with different ammunition proved to be well worth it. One thing is certain no supplier in all my years can beat Primary delivery service.