Streamlight ProTac Rail Mount 1L-X Weapon Light

The Streamlight ProTac Rail Mount 1L-X is a compact, multi-fuel rail-mounted light designed for short-barreled rifles, carbines, and submachine guns. It accepts either one Streamlight SL-B9 rechargeable lithium-ion battery pack or one CR123A battery and offers selectable operating programs via TEN-TAP programming. A standard push-button tailcap is included, and the package ships with mounting hardware for both M-LOK and MIL-STD-1913 (Picatinny) rails. Construction uses 6000-series machined aircraft aluminum with a black anodized finish and an anti-reflective coated BOROFLOAT glass lens for impact resistance.

Key Specifications

• The model is ProTac Rail Mount 1L-X.
• Power options include one SL-B9 rechargeable battery pack or one CR123A battery.
• High output is 850 lumens with SL-B9 (30,000 candela, 346 m) and 500 lumens with CR123A (18,000 candela, 268 m).
• Low output is 100 lumens (3,400 candela, 117 m) for both battery options.
• Weight is approximately 5.12 oz with CR123A and 5.22 oz with SL-B9.
• Includes TEN-TAP programmable modes with selections for High/Strobe (factory default), High Only, and Low/High.
• Mounts directly to MIL-STD-1913 (Picatinny) rails and M-LOK compatible rails with supplied hardware.
• The body is 6000 series machined aircraft aluminum with a black anodized finish and an anti-reflective BOROFLOAT glass lens.
• Rated IP67 with the standard push-button installed (waterproof to 1 m for 30 minutes) and IP54 with the remote pressure switch installed (water-resistant).

Configured for modern short-barrel platforms, the ProTac Rail Mount 1L-X combines flexible power options, programmable output modes, and durable construction to meet demanding duty requirements. Its compact footprint and one-handed attachment interface make it a practical choice for users who need a reliable, adaptable rail-mounted light for operational environments and everyday service applications.