Sig Sauer Romeo5 Gen II 1x20mm Compact Red Dot (Black)

The Sig Sauer Romeo5 Gen II is a compact 1x non-magnified optic designed for rapid target acquisition on modern sporting rifles and other platforms compatible with a Picatinny/1913 footprint. It features a side-loading CR2032 battery with motion-activated power saving (MOTAC) and an analog rotary illumination control with dedicated night-vision settings. The chassis is engineered for durable field use and sealed against water and fog ingress to support reliable operation in adverse conditions.

Key Specifications

• The optic provides 1x magnification for an unobstructed, both-eyes-open sight picture.
• The objective lens measures 20 mm to balance compact size with usable sight picture.
• Power is supplied by a CR2032 battery for widely available replacement cells.
• Battery life is rated at approximately 40,000 hours under standard usage with MOTAC enabled.
• The optic mounts with a M1913 / Picatinny I-BEAM footprint for straightforward attachment to standard rails.
• Brightness is adjusted with 12 settings (ten daylight + two night-vision compatible positions).
• Durability features include IPX7-level waterproofing and fog-proofing for all-weather use.
• The sight incorporates a MOTAC motion-activated battery-saving sensor to preserve runtime between uses.
• The unit has an advertised weight of 5.5 oz to keep the overall package compact and lightweight.
• The optical design is described as parallax-free with unlimited eye relief for fast target acquisition.

The Romeo5 Gen II combines compact ergonomics with practical features for day-to-night use and routine field conditions. Its simple controls and Picatinny-compatible I‑BEAM mount make it a versatile choice for shooters seeking a durable, easy-to-use red dot optic for close- to mid-range applications.