Streamlight ProTac Rail Mount 1L-X - 850 Lumens - Push-Button - CR123A - Black

The Streamlight ProTac Rail Mount 1L-X is a compact, multi-fuel, high-output tactical light for short-barreled rifles, carbines, and submachine guns — 850 lumens and 30,000 candela with TEN-TAP programmable operating modes, a standard push-button tail cap for straightforward activation, and M-LOK mount included for versatile rail system mounting.

The Streamlight ProTac Rail Mount 1L-X is a compact rifle and carbine weaponlight delivering up to 850 lumens / 30,000 candela / 346m beam distance on high. Multi-fuel: CR123A lithium or SL-B9 USB rechargeable. TEN-TAP programmable for three operating programs. Standard push-button tail cap. Length: 4.64 in. Includes tail cap switch, M-LOK mount, and one CR123A battery.

The 1L-X shares the 1L-X Pro's core output, size, and multi-fuel capability but simplifies the control interface to a standard push-button tail cap — the correct choice for users who prefer direct thumb activation without the added complexity of a Jack-Cap system and remote switch routing. At 4.64 inches and running on a single CR123A or SL-B9, it delivers 850 lumens / 30,000 candela on SL-B9 or 500 lumens / 18,000 candela on CR123A — the multi-fuel design allows runtime optimization by battery choice without changing the light. TEN-TAP programming pre-selects from High/Strobe (factory default), High Only, or Low/High operating programs before the light is mounted, tailoring activation behavior to the mission without requiring in-field adjustment. Low output is 100 lumens with 4.5 hours (SL-B9) or 6.5 hours (CR123A) runtime. The M-LOK mount is included for mounting on M-LOK compatible handguard systems in addition to the primary MIL-STD-1913 Picatinny clamp. The standard push-button tail cap provides a clean, uncluttered installation without pressure switch cable routing for users who run the light directly rather than through a remote activation system.

High: 850 lm (SL-B9) / 500 lm (CR123A). Candela: 30,000 / 18,000. Beam: 346m / 268m. Runtime high: 0.5h (SL-B9) / 1.75h (CR123A). Low: 100 lm, 4.5h (SL-B9) / 6.5h (CR123A). Strobe: 1.25h (SL-B9) / 2.5h (CR123A). Battery: CR123A or SL-B9. Length: 4.64 in. Tail cap: standard push-button. TEN-TAP: 3 programs. Includes: tail cap switch, M-LOK mount, hardware, 1x CR123A.

Standard push-button tail cap provides straightforward direct-thumb activation without remote switch routing — the correct choice when simplicity and clean installation take priority over remote activation redundancy. M-LOK mount included for M-LOK handguard systems. Multi-fuel CR123A/SL-B9 allows runtime optimization by battery choice. TEN-TAP pre-selects operating program before deployment.

The right compact weaponlight for SBR, carbine, and SMG users who want high-output multi-fuel performance with straightforward push-button activation and M-LOK mounting flexibility — 850 lumens, TEN-TAP programmable, M-LOK mount included.