CSR Precision HKey Picatinny Rail Section Long (9-slot)

Designed for seamless compatibility with European Heckler & Koch MR223, MR308, MP5 MLI H-KEY, and HK G36 Slimline handguards, these CSR Precision HKey Picatinny Rail Sections are precision-machined from durable 7075-T6 billet aluminum and finished with a mil-spec anodizing for enhanced wear resistance in either black or tan. 

Each rail comes along with original H&K mounting screws for installation.

Length: 99.35mm

Made in Holland

Pre-order: available end of June 2026