Pew Pew Tactical Logo
Now with AI Product Recommendations.
Login
Hand-Picked Daily GUN DEALS

New Product Highlight: Primary Arms SLx 4.5-27×56

Looking for a precision rifle scope to shoot long range on a budget? The new Primary Arms SLx 4.5-27x56 might be just what you need.

Author Bio Image for Scott Murdock - Editor & Senior Review Analyst
By
Scott Murdock (Editor & Senior Review Analyst)

PPT Editor. Marine vet, hunter, and long-range shooter. Articles in 10+ major publications

Published Nov 21, 2025
Add as preferred source on Google

We review products independently. When you buy through links on our site, we may earn a commission to help support our testing. Learn more about our review process.

Getting good at precision shooting takes practice, but that’s hard to do when all the gear you need is expensive!

The new Primary Arms SLx 4.5-27x56 rifle scope might make the barrier to entry a little easier to clear.

Let’s see what the spec sheet has to say about this new optic.

Primary Arms SLx 4.5-27x56 Specs & Features

Specs

  • Magnification: 4.5-27x
  • Objective Lens: 56 mm
  • Focal Plane: FFP
  • Reticle: ACSS Athena BPR, ACSS DEKA G2
  • Adjustments: 0.1 MRAD
  • Field of View: 4.46 ft - 26.69 ft
  • Eye Relief: 4”
  • Length: 13.78”
  • Tube Diameter: 34 mm
  • Weight: 33 oz
  • MSRP: $629.99

Features

  • Two FFP MRAD reticle options
  • Above-average magnification range
  • Switch between exposed and locking turrets
  • Physical zero stop

Numbers don’t tell the whole story but, in this case, they’re a promising start.

Many precision rifle scopes fall into the 5- to 25-power realm of magnification. This one adds some capability on each end, with 4.5- to 27-power magnification and a 56-millimeter objective lens.

Sorry, MOA shooters, this one’s only available in milliradian. You do get two first focal plane reticle options, though: ACSS Athena BPR in MRAD or ACSS DEKA G2 in MRAD.

Primary Arms SLx 4.5-27x56 reticles
Primary Arms SLx 4.5-27x56 ACSS Athena BPR MIL (left) and ACSS DEKA MIL G2 (right) reticles. (Photo: Primary Arms)

A flexible turret system lets you install exposed, locking turrets or run capped turrets. From the factory, it looks like the elevation turret is exposed, and the windage turret is capped. That's a pretty common configuration on value-focused precision optics.

There are also turrets for parallax and illumination adjustment.

Once you zero the scope, the Easy Stop system lets you return to zero without worrying about going past it.

PSA Sabre AR-10 VTAC
This Palmetto State Armory Sabre AR-10 would be just peachy with the new Primary Arms SLx 4.5-27x56.

Whether you want to get into precision shooting on a budget or build a super-capable DMR-style setup, the SLx 4.5-27x56 promises a lot of value. For the money, it should be hard to beat.

The cash you save on your scope will come in handy when the time comes to buy a chronograph, wind meter, and match-grade ammo.

Garmin Chronograph
Long-range gear isn't cheap!

“The new SLx 4.5-27x56 is a great representation of what the SLx line has always stood for: quality, value, and consistency,” Stephen Morgan, director of product marketing at Primary Arms Optics, said in a company release.

“With upgraded glass, high-performance turrets, and some of our best precision reticles, this scope gives long-range enthusiasts the tools to tackle distant targets without breaking the bank.”

Primary Arms lists an MSRP of $629.99 for the SLx 4.5-27x56.

What do you think of the new Primary Arms SLx 4.5-27x56? Let us know below. For more great glass, check out our guide to the Best Long-Range Rifle Scopes!

Scott Murdock

Written By
Scott Murdock
Editor & Senior Review Analyst

Scott Murdock is a Marine Corps veteran with a basic working knowledge of shooting, written English, and photography. He's passionate about helping readers find quality gear that's worthy of their money. You can find more of his work at Task & Purpose, Free Range American, and Outdoor Life.

instagram Iconlinkedin Icon

WHY YOU CAN TRUST PEW PEW TACTICAL

Since 2016, the Pew Pew Tactical team has been dedicated to providing expert reviews and in-depth testing of guns and gear. All while keeping in mind that guns are fun and that readers come first.

Written by American gun enthusiasts, competitive shooters, former military/law enforcement personnel, and trained journalists, we use our extensive skill sets and knowledge to bring a well-rounded, researched approach to our content.

We pride ourselves on hands-on testing and real-world experience with all products we recommend. Further, we believe in objectivity and approaching all articles without bias – our few advertisers never influence our reviews or recommendations. We believe in giving our readers a comprehensive understanding of how and why a product is great – or isn’t. And if it’s good enough for us to use ourselves and recommend to loved ones.

Our content, analysis, and insights on firearms and gear are recognized across the web. We are proud to be cited by authoritative third-party platforms including Newsweek, Yahoo News, and Wikipedia, demonstrating our standing as a trusted resource in the firearms industry.

Conversation