A.R.M.S., Inc. Low-Profile Flip-Up Rear Sight, dual aperture, 0.75 minute-of-angle windage adjustment – 40L

Product Description

The A.R.M.S. #40L Low Profile Flip-Up Rear Sight delivers proven reliability in a compact, optics-friendly design. Built for flat-top receivers, it features a miniaturized windage knob with precise 0.75 minute-of-angle adjustments and a unique dual-aperture system that includes a notched top for faster sighting at close quarters. The sight leans to the rear so it folds in the correct direction if dropped, helping maintain zero. With a folded height of just 0.610 inches, it offers excellent clearance for mounting optics on Picatinny rails and is 100% made in the USA.

Product Highlights

• Low-profile, flip-up rear sight for flat-top receivers and Picatinny rails
• Miniaturized windage knob with 0.75 MOA per-click adjustment
• Dual-aperture design with notched top for rapid CQB sighting inside 50 meters
• Rear-leaning fold direction helps protect and maintain zero if dropped
• Compact 0.610-inch folded height for enhanced optic clearance; made in the USA

Specs

• Manufacturer: A.R.M.S., Inc.
• Model/MPN: 40L
• Sight Position: Rear
• Mount Type: Picatinny; Top Mounted
• Color: Black
• Windage Adjustment: 0.75 MOA per click
• Aperture: Dual aperture with notched top
• Folded Height: 0.610 in
• Compatibility: Fits flat-top receivers with Picatinny rails (AR platform)
• Country of Manufacture: USA
• NSN: 1005-01-575-3508
• Patent Numbers: US 5,533,292; 7,356,962; D526,380
• Brand Name: A.R.M.S., Inc.

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