HKP HK MR556/CR556/MR762 H-Key 5 Rail Segment

HK MR556, CR556 & MR762 HKey Rail Segment - 5 Slot5 picatinney slot rail segment for the new "HKey" style forearm. Each rail section is designed to fit and attach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and similar models. Made from aircraft grade aluminum, fully hard coat anodized. Made 100% in the USA. Hardware is 100% steel & Grade 5 titanium. Each rail sections includes all of the necessary hardware for installation. Super lightweight, strong and built for heavy use with lasers, lights & other accessories.

• CR556
• MR556 (with HKey handguard installed)
• CR762
• MR762 (with HKey handguard installed)
• Does not fit the MP5 HKey forearm

Specs of each rail:

• Weighs .5 oz
• 2.25" Overall length
• 5 picatinney rail slots
• 2 HKey groove rail size
• Grade 5 Titanium locking guides & steel hardware
• This size is the smallest length available and can be used on all sides

ttach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and similar models. Made from aircraft grade aluminum, fully hard coat anodized. Made 100% in the USA. Hardware is 100% steel & Grade 5 titanium. Each rail sections includes all of the necessary hardware for installation. Super lightweight, strong and built for heavy use with lasers, lights & other accessories. CR556 MR556 (with HKey handguard installed) CR762 MR762 (with HKey handguard installed) Does not fit the MP5 HKey forearm Specs of each rail: Weighs .5 oz 2.25& Overall length 5 picatinney rail slots 2 HKey groove rail size Grade 5 Titanium locking guides & steel hardware This size is the smallest length available and can be used on all sides