Vector Optics Steel Picatinny Rail Curved – Robust 20 cm 21 mm Mounting Base with Curved Underside

The Vector Optics Steel Picatinny Rail Curved is a heavy-duty 200 mm interface rail engineered for secure accessory attachment on firearms, handguards, or custom builds. Constructed from durable S45C (#45) steel, this curved-bottom rail provides a solid platform for mounting optics, lights, grips, bipods, and more—ensuring reliable performance in demanding environments.

Premium Materials & Build Quality

This rail is machined from high-grade carbon steel (S45C / 1045 / #45), chosen for its hardness, wear resistance, and longevity. At a weight of approximately 230 g (8.1 oz), it provides enough mass to stay rigid under recoil yet remains manageable in handling. The natural steel finish requires initial cleaning with machine oil before applying a custom coating or paint.

Curved Underside: Ergonomics & Compatibility

The rail features a curved bottom profile designed to contour to cylindrical surfaces—ideal for tubular handguards or rounded fore-ends. This unique shape improves attachment stability and aesthetics while maintaining full Picatinny compatibility on top.

Precise Mounting Interface

• Length: 200 mm (7.9″) with 19 slots for full-length accessory placement.
• Rail Height: 7.8 mm (0.3″) above surface, ensuring nominal elevation for mounted gear.
• Rail Type: NATO-standard 21 mm Picatinny, fully compatible with MIL-STD-1913 accessories.

Ideal User Applications

• Custom builds where a curved mounting base is required (e.g. airguns, shotguns, DIY platforms)
• Replacing damaged factory rails with a robust all-steel alternative
• Mounting full-size optics, lasers, lights, or bipods securely and reliably
• Professional or tactical applications requiring long-term durability and alignment stability

Technical Specifications

Installation & Prep Notes

Before applying any finish—such as anodizing, Cerakote, or paint—clean the raw steel surface thoroughly with light machine oil to remove machining residue and prevent oxidation. Ensure proper rail alignment and even torque when installing accessories to maintain repeatable zero.

Summary

The Vector Optics Steel Picatinny Rail Curved offers unmatched rigidity and stable mounting for accessories on curved or round bases. Built from premium S45C steel, it excels where strength and long-term stability are essential. Whether you're building a custom airgun, upgrading factory parts, or outfitting a tactical rig, this curved rail provides a rock-solid foundation for your gear.