Purpose and fit Mount adapter designed to attach accessories to standard 20 mm Picatinny rails. Compatible with optics, lights, lasers, and other rail-mounted equipment that use 20 mm rail interfaces. Key benefits Secure attachment: solid connection to 20 mm Picatinny rails reduces movement and maintains alignment of mounted accessories. Lightweight and durable: made from aluminum alloy for a balance of strength and low weight. Corrosion-resistant finish and long life under regular field use. Size and tolerance Size is shown in the product photos; please refer to images for exact dimensions. Manual measurement tolerance: allow an error of ±1–3 mm. Performance and usability Simple, reliable mounting solution for repeatable installation and removal. Minimal added weight helps preserve balance and handling of the host equipment. Works with common rail-mounted accessories without modification. Practical applications Hunting or precision shooting: mount a compact red-dot sight or magnifier on a rifle with a 20 mm Picatinny rail. Tactical and law-enforcement use: attach weapon lights or laser aiming devices for consistent positioning. Airsoft, training, and range setups: quick-install mounting for optics and accessories during drills or competition. Notes for buyers Confirm your accessory and rail are standard 20 mm Picatinny specifications before purchase. Refer to product images for exact size; allow ±1–3 mm due to manual measurement.