Laylax PSS-10 VSR-10 Spec 6.03mm Stainless Steel Barrel (300 - 555mm) Misc. Internals The HS403C is a 20mm

The HS403C is a 20mm micro optical sight designed for rifle and carbine applications

As a consequence

Foam (inside)

Battery: AA Battery x 2

Color: Black low friction coating

Laylax PSS-10 VSR-10 Spec 6.03mm Stainless Steel Barrel (300 - 555mm) Misc. Internals The HS403C is a 20mmFeatures: Made from High Quality Stainless Steel Precision 6. 03mm Inner Diameter Internally Polished with Precision Crown Length: 555mm (Different length will be cut and crowned on the machine) Inner Diameter 6. 03mm Compatibility: For Tokyo Marui VSR 10 Series and other compatible Airsoft Sniper Rifles Material: Stainless Steel Manufacturer: Laylax