Streamlight ProTac HL-X | 1000/60 Lumens | 88066

The Streamlight ProTac Rail Mount HL‑X (MFG# 88066) is a compact, rail‑mounted illumination tool engineered for long‑gun use. It provides a high‑output mode for maximum visible light and a low mode for extended runtime, and is compatible with standard MIL‑STD‑1913 (Picatinny) rails as well as M‑LOK installations using the included adapter. The HL‑X accepts multiple battery options and can be operated via the included push‑button tail cap or a remote pressure switch for mounted applications.

Product Specifications

• The manufacturer is Streamlight.
• The model is ProTac Rail Mount HL‑X.
• The manufacturer’s part number is 88066.
• The high output is 1000 lumens.
• The low output is 60 lumens.
• Battery options are two CR123A batteries or one Streamlight SL‑B26 rechargeable pack.
• Mounting attaches to MIL‑STD‑1913 (Picatinny) rails and the package includes an M‑LOK mount.
• The switch options are push‑button tail cap and remote pressure switch.
• Construction is anodized aluminum with an impact‑resistant tempered glass lens.
• The finish is black.
• Included accessories are remote pressure switch, tail cap switch, remote retaining clips, M‑LOK mount, double‑sided tape, and zip ties.
• The product type is weapon light.
• This item is listed as an AR‑15 accessory.
• The UPC is 080926880665.

Built around a robust aluminum body and a low‑profile rail clamp, the ProTac HL‑X is designed for repeatable attachment and use on modern sporting rifles and other long guns. Its dual‑fuel capability, multiple switch options, and compact footprint make it useful for range practice, low‑light training, and hunting applications where a weapon‑mounted light streamlines sight picture and target identification. The HL‑X balances high output with practical mounting options and is intended for shooters who want durable, mission‑focused illumination.