Streamlight TLR-8 Sub Red Laser 500 Lumens Tactical Light for Glock 43x/48 with Rail, Black

The Streamlight TLR-8 Sub Red Laser is a compact rail-mounted tactical light purpose-built for subcompact handguns like the Glock 43X and 48. If you carry a modern pocket-sized pistol and want practical, no-nonsense illumination with an aiming aid for defensive or low-light shooting, this light delivers 500 lumens of white LED output plus an integrated red laser—all in a form factor that doesn't bulk up your already-compact carry gun.

At just 2.77 ounces and 2.51 inches long, the TLR-8 Sub mounts directly to the rail of your Glock 43X or 48 without adding significant weight or footprint. The anodized aluminum body is tough enough for daily carry and training, and the IPX4 water-resistant rating means you don't have to baby it in less-than-perfect conditions. One CR123A lithium battery (included) powers the light for 1.5 hours of continuous operation, or if you're using the laser only, expect about 60 hours of runtime—a meaningful difference if this is a defensive tool that might sit for weeks between range trips.

The ambidextrous rear paddle switches let you tailor the activation method to your grip and preference, and you can choose between momentary and constant-on modes. A user-enabled strobe function gives you one more option for disorienting a threat in a dark environment. The bezel's safe-off feature prevents accidental activation and preserves battery life, and the rail grip clamp secures the light without requiring you to position your hands in front of the muzzle during installation or removal.

This is a serious tool for serious carry. The TLR-8 Sub lives in the intersection of practical self-defense and subcompact ergonomics—no added bulk, plenty of capability.

Key Features

• 500 lumens white LED with 141-meter beam for immediate target illumination
• Integrated red laser for aiming reference in low light
• Ambidextrous rear paddle switches for customizable activation to your grip
• Strobe function for defensive scenarios
• Compact, lightweight design (2.77 oz) fits subcompact carry guns without adding bulk
• Safe-off bezel prevents accidental activation and battery drain
• IPX4 water-resistant construction for reliability in variable conditions
• Rail grip clamp allows secure attachment and removal without muzzle-safety compromise
• One CR123A lithium battery included; 1.5 hours runtime (light only or light/laser), 60 hours laser-only

Specifications

Frequently Asked Questions

What handguns does the TLR-8 Sub fit?

The TLR-8 Sub mounts on Glock 43X and 48 models with rail (43X RAIL/48 RAIL or MOS variants), as well as Sig Sauer P365 and P365 XL, Springfield Armory Hellcat, Smith & Wesson M&P M2.0 subcompact, Beretta Px4 Storm subcompact, Springfield Armory XD-E and XD-S, and Heckler & Koch HK45 compact—basically any subcompact with a 1913 short rail.

Is this light suitable for concealed carry and self-defense?

Yes. At 2.77 ounces with a compact 2.51-inch profile, it's engineered for subcompact carry guns. The integrated red laser and 500-lumen output serve defensive low-light identification and targeting. The safe-off bezel prevents accidental activation during carry, and IPX4 water resistance supports reliability in variable conditions.

What battery does it use, and how long will it last?

One CR123A lithium battery is included with the light. Expect 1.5 hours of continuous runtime using the light and laser together (or light-only mode), or approximately 60 hours if you use the laser alone. Battery life depends on activation mode and usage pattern.

Can I customize the switch activation?

Yes. The TLR-8 Sub features interchangeable ambidextrous rear paddle switches, allowing you to configure how you activate the light and laser to match your shooting grip and preference.