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Primary Arms

Primary Arms SLX MD-25 Gen II Microdot with Battery Saving AutoLive Feature

  • Based on 95 reviews
Condition: New
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$199.99 Why this price?
Prime Day Deal · 17% off was $239.99

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  • – 6-month term
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30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: Only 3 left in stock, order soon!
Fulfilled by Primary Arms
Arrives Tuesday, Jun 30
Order within 4 hours and 20 minutes
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Style: ACSS Reticle


Features

  • Front lens canted by design to ensure reticle is centered.
  • AutoLive functionality
  • Wide field of view
  • Compact, lightweight, and durable. Just 3" long and 6.5 Oz.
  • 12 Illumination settings for bright days, Up to 12,000 hour battery life (1+ year) at medium setting

Brand: Primary Arms


Color: Black


Style: ACSS Reticle


Sport: shooting


Item Weight: 6.5 Ounces


Material: Aluminum


Objective Lens Diameter: 25 Millimeters


Compatible Devices: Rifle, Shotgun


Mounting Type: Cantilever Mount


Night vision: No


Objective Lens Diameter: 25 Millimeters


Compatible Devices: Rifle, Shotgun


Mounting Type: Cantilever Mount


Night vision: No


Reticle Type: ACSS


Item Weight: 6.5 Ounces


Item Display Weight: 6.5 ounces


Color: Black


Product Style: ACSS Reticle


Material Type: Aluminum


Brand Name: Primary Arms


Sport Type: shooting


Model Name: SLx


Manufacturer: Primary Arms


UPC: 818500018308


Unit Count: 1.0 Count


Warranty Description: Limited Lifetime


Included Components: Includes red dot risers & spacers, Mount to 0.96”, 1.41”, 1.54”, or 1.64”, Primary Arms SLx MD-25 Gen 2 - ACSS Red Dot Sight, one CR2032 battery


Item Type Name: Red Dot


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Excellent optic
Style: 2 MOA Red Dot
Excellent optic at the right price. Shake awake is the way to go. Will purchase another. Dot is bright and battery lasts a good long while.
Reviewed in the United States on June 19, 2025 by Jake Provaznik
    • What can I say.
Style: 2 MOA Red Dot
What can I say I’ve had PA optics since their start and they continue to innovate and impress. Dot quality with my astigmatism is fantastic even under a magnifier. It’s NTOA approved and on my duty rifle. Minimal parallax and has taken a good beating and held zero. Can’t go wrong with PA.
Reviewed in the United States on February 19, 2025 by Customer CXIII
    • Definitely worth the price
Style: ACSS Reticle
Reticle is a little small but I am a glasses user. Still very easy to sight and aquire targets. I have on a ARP9
Reviewed in the United States on May 6, 2026 by Luis V.
    • Better Options for CQB
Style: 2 MOA Red Dot
Review Image by James
Well...this is a red dot. I only gave 4 stars because, for CQB, I identified a flaw that I don't like. I didn't realize this until I got the sight and did a comparison with other red dots I own. This Primary Arms sight has a large adjustment knob on the left side of the red dot. For right handed shooters, this blocks some of the shooters field of view (shooting both eyes open). This may seem like a small thing but....in life and death scenarios, small things matter. I am not knocking the quality of the sight...just the layout of the site. Range use...plinking...ok...5 stars. CQB?...3 stars!...the Sig Sauer Romeo 5 has a better layout/functionality for defense usage. ... show more
Reviewed in the United States on May 8, 2026 by James
    • Prefect lil red dot
Style: ACSS Reticle
The media could not be loaded. Etched glass, shake awake and solid build. Wish it would have come with QD mount, I think for the price it should but its good. Note the etching is a lot clearer IRL.
Reviewed in the United States on February 27, 2026 by Hypoxic
    • Solid optics
Style: ACSS Reticle
Solid optics. Big fan of the reticle and controls.
Reviewed in the United States on November 7, 2025 by Sean C.
    • Great product for the price
Style: 2 MOA Red Dot
After using this for quite some time now I can honestly say that you cannot beat this product for the price. Easy to dial in and is robust, no issues with it coming off of zero. I ran this on both my 12 gauge and 9mm carbine.
Reviewed in the United States on November 13, 2025 by Amazon Customer
    • Great red dot
Style: 2 MOA Red Dot
The Primary Arms SLX MD-25 Gen has truly exceeded my expectations. Its crisp reticle and clear optics provide an exceptional sight picture, enhancing my shooting accuracy. The durability and build quality are outstanding, proving its reliability even in challenging conditions. The battery life is impressive, and the overall design reflects careful attention to user needs. This red dot sight has become an integral part of my setup, and I wholeheartedly recommend the Primary Arms SLX MD-25 Gen to anyone seeking a top-tier optic for their firearms. ... show more
Reviewed in the United States on January 28, 2024 by Brian Lam

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