Streamlight ProTac Rail Mount 2.0 Weapon Light with Remote Switch & SL-B50 Rechargeable Battery - Aluminum Black

The Streamlight ProTac Rail Mount 2.0 is a compact, rechargeable weapon light built for serious shooters who demand performance without compromise. At 2000 lumens on high, this rail-mounted light cuts through darkness and reaches out to 266 meters—enough throw for distance shooting or tactical work, yet the battery runs for 2.5 hours at full power. The system includes a remote pressure switch, so you mount the light where it belongs on your Picatinny rail and operate it intuitively from your grip. If you run suppressed or shoot in tight quarters, drop to 250 lumens for 11 hours of runtime and better peripheral vision. The strobe mode runs 4.5 hours and gives you a signaling or disorientation tool when you need it.

What sets this light apart is the SL-B50 rechargeable battery pack and the charging system. The battery lives in the light—no removals, no fumbling with proprietary holders. Plug in the USB-C cord, charge it inside the light or out, and get back to business. That's real convenience for the range, duty rotation, or backcountry work. The aluminum body is aircraft-grade 6000 series with Type II MIL-Spec anodize, so it laughs at scratches and rough handling. IP67 rating means it's dust-tight and waterproof to 2 meters, and Streamlight stress-tested impact resistance at 2 meters too—this light won't crack if you take a tumble or knock it on a truck bed rail.

The ProTac 2.0 mounts directly to any MIL-STD-1913 (Picatinny) rail on AR-15s, AK platforms, shotguns, precision rifles, and duty carbines. You get three programmable modes via TEN-TAP user selection: high/strobe, high only, or low/high. Pick the mode that fits your role and stick with it. At 9.06 ounces, it's light enough not to nose-heavy your rifle or shotgun, and the 6.30-inch length plays well with most handguards and mounting schemes.

Key Features

• 2000 lumens on high with 266-meter beam distance for long-range visibility
• Rechargeable SL-B50 lithium-ion battery charges via USB-C inside or outside the light
• Three user-selectable programs: high/strobe, high only, or low/high modes
• Low mode: 250 lumens for 11 hours of extended runtime
• IP67 dust-tight and waterproof to 2 meters; 2-meter impact-resistant
• 6000 series machined aluminum with Type II MIL-Spec hard anodize
• Mounts to any MIL-STD-1913 Picatinny rail
• Remote pressure switch included for intuitive activation
• Compact 6.30-inch length, 9.06 ounces with battery

Specifications

Frequently Asked Questions

Will this light work on my AR-15, shotgun, or other rifle?

Yes. The ProTac Rail Mount 2.0 mounts directly to any MIL-STD-1913 (Picatinny) rail, which is the standard found on AR-15s, AK platforms, modern shotguns, precision rifles, and most duty-style carbines. If your gun has a Picatinny rail, this light will fit.

What's included with this system?

The ProTac Rail Mount 2.0 includes the light, one SL-B50 rechargeable lithium-ion battery pack, and a remote pressure switch for activation from your grip. The battery charges via USB-C and stays in the light—no removal needed.

How long does the battery last, and how do I charge it?

On high (2000 lumens), you get 2.5 hours. On low (250 lumens), the battery runs for 11 hours. The SL-B50 charges using a USB-C cord, either while installed in the light or removed from it. Charge time and full specifications for the battery are available from Streamlight.

Is this light waterproof?

Yes. It's rated IP67, meaning it's dust-tight and waterproof to 2 meters. It's also been tested for impact resistance at 2-meter drops, so it can handle the abuse of field use, rough handling, or accidental drops.