Streamlight ProTac Rail Mount 1L-X | 500/850 Lumens | 89026

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 USB rechargeable battery pack or one CR123A lithium battery and offers TEN-TAP programmable modes for flexible use. The unit mounts directly to MIL-STD-1913 (Picatinny) rails or to M-LOK and M-LOK-compatible rails and includes a push-button tail cap for direct activation.

Typical applications include low-light target identification and tactical/field equipment use such as law enforcement screening or range training with short-barreled platforms.

Product Specifications

• The manufacturer is Streamlight.
• The model is listed as ProTac Rail Mount 1L-X.
• The manufacturer’s part number is 89026.
• The UPC is 080926890268.
• The light operates in multiple output levels with TEN-TAP programming and selectable programs: High/Strobe (factory), High only, and Low/High.
• The high output is reported as 850 lumens (with SL-B9) and 500 lumens (with CR123A), with corresponding candela and beam distances documented by the manufacturer.
• The low output is listed as 100 lumens with run times and candela values provided per battery type.
• Run time on SL-B9 is reported as 0.5 hours (High), 4.5 hours (Low), and 1.25 hours (Strobe).
• Run time on CR123A is reported as 1.75 hours (High), 6.5 hours (Low), and 2.5 hours (Strobe).
• The unit mounts directly to MIL-STD-1913 (Picatinny) rails and to M-LOK or M-LOK-compatible rails.
• Activation is via a standard push-button tail cap switch and the light includes an alternate tailcap switch in the package.
• The body is machined from 6000 Series aircraft aluminum with a black anodized finish.
• The lens is BOROFLOAT glass that is anti-reflective coated and shock-mounted for impact resistance.
• The unit is rated IP67 with the standard tailcap switch installed and IP54 with the remote pressure switch installed.
• The package includes a mounting kit and tailcap switch for rail attachment.

The ProTac Rail Mount 1L-X combines a compact footprint with multi-fuel flexibility and multiple output modes to suit mounting on short-barreled rifles and carbines where a high-output, durable light is required. Its machined aluminum body, impact-resistant glass, and waterproof ratings make it suitable for sustained field use and frequent handling, while TEN-TAP programming lets users tailor outputs to mission or training needs.