The Streamlight ProTac Rail Mount 1 is a compact weapon-mounted light designed to attach to MIL-STD-1913 (Picatinny) rails. It operates on either one CR123A lithium battery or one AA battery (alkaline or lithium) and offers multiple output levels with TEN-TAP programmable modes. Included accessories provide both a push-button tailcap and a remote pressure switch for flexible control options. Durable anodized aluminum construction and an impact-resistant tempered glass lens make it suitable for regular field use.
Key Specifications
- The high output with a CR123A lithium battery is 350 lumens with a beam distance of 219 meters.
- The low output with CR123A is 40 lumens with a beam distance of 19 meters and a runtime of 14.5 hours.
- When using AA alkaline the high output is 150 lumens with a beam distance of 141 meters and a runtime of 1.5 hours.
- The light is multi-fuel and accepts one AA (alkaline or lithium) or one CR123A lithium battery (batteries included).
- Maximum candela rating on CR123A high is 12,000.
- The integrated mounting system attaches to MIL-STD-1913 (Picatinny) rails and includes an M-LOK mount for alternative placement.
- Overall length is 4.25 inches and weight is approximately 4.5 ounces.
- Programmable TEN-TAP offers three selectable modes: high/strobe (default), high only, or low/high.
- Includes a remote pressure switch and a push-button tailcap switch for momentary and constant-on operation.
- Ingress protection is IPX7 with the standard switch installed and IPX4 with the remote pressure switch installed.
Compact, adaptable, and built from anodized aluminum with an impact-resistant lens, the ProTac Rail Mount 1 provides dependable illumination and versatile switching options for rifles and carbines equipped with Picatinny rails. Its multi-fuel capability and included mounting accessories make it a practical choice for users who need a low-profile, reliable rail-mounted light with programmable modes and both tailcap and remote-switch control.





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