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The Primary Arms SLx MD-25 Gen II is the kind of red dot that just gets out of your way and lets you shoot. It runs a clean 2 MOA dot through a 25mm objective, which gives you a field of view that feels closer to a 30mm tube than a tiny micro. That extra glass makes a real difference when you're tracking a moving target or getting back on the dot after recoil, and the fully multi-coated anti-reflective lenses keep the picture bright and free of glare.
The headline upgrade on this generation is AutoLive, Primary Arms' motion-sensing tech. The dot shuts off when the optic sits still and snaps back on the moment you pick up your rifle, so it's ready before you are. Pair that with up to 50,000 hours of battery life on a medium setting, roughly five-plus years on a single CR2032, and you can genuinely leave it on and forget about it. You get 12 brightness settings in the mix, including two night-vision-compatible modes for anyone running NODs.
The MD-25 Gen II is machined from 6061 aluminum with a hardcoat anodized matte black finish, and it's fog resistant and shockproof for whatever weather or recoil you throw at it. At just 3 inches long and 6.5 ounces, it won't weigh down a carbine, yet it feels solid in the hand. Primary Arms also reworked the mounting system for this generation with integrated recoil lugs and large-diameter crossbolts, so it clamps hard to a 1913 Picatinny rail and stays put under heavy recoil.
One of the nicest touches is how adaptable the mount is. The optic ships with a low base, a standard riser, and two height spacers, letting you dial in a centerline height of 0.96, 1.41, 1.54, or 1.64 inches. The standard riser lands right at lower-third cowitness for AR-15s and AR-10s, while pulling it off opens the door for AKs, shotguns, and other platforms. Windage and elevation adjust in 1/2 MOA clicks, and since it's built to a standard microdot footprint, it drops right onto most aftermarket micro mounts if you want to switch things up later.
AutoLive is a motion-sensing feature that powers the dot down when the optic has been sitting still for a while and brings it right back the instant it detects movement. That means when you grab your rifle, the dot is already on and ready. It stretches an already long battery life even further and takes the guesswork out of whether your optic is powered up.
Yes, it ships with a complete mounting system. You get a low base, a standard riser, and two height spacers, which let you set a centerline height of 0.96, 1.41, 1.54, or 1.64 inches. All the mounting hardware is included, so it's ready to bolt onto a 1913 Picatinny rail right out of the box.
This is the 2 MOA dot model, which uses a simple, crisp 2 MOA red dot for clean, fast aiming. The ACSS CQB version instead carries a reticle with a chevron and bullet drop dots for ranging at distance. The 2 MOA dot version also gets the longer rated battery life, up to 50,000 hours on a medium setting.
It is. The optic has 12 brightness settings, two of which are made for use with night vision devices. The fully multi-coated anti-reflective lenses also help keep the view bright and clear across daytime and low-light conditions.
| UPC | 818500018292 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 810032 |
| Color | Black |
| MOA | 2 MOA |
| Model | |
| Power | 1X |
| Product Type | Sight |
| Reticle | Red Dot |
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