The HK MR762 RAL8000 Magazine Baseplate is designed for the standard 20-round MR762 / HK417 magazine chambered in 7.62×51 mm NATO. While the baseplate itself does not change the physical dimensions of the magazine body, it is the factory RAL8000-colored component used on HK’s 20-round steel magazines, maintaining full 20-round capacity and OEM reliability. HK does not publish standalone height, length, width, or weight specifications for the baseplate alone, as it is treated as a replacement component for the complete magazine assembly. If you need dimensions for the full MR762 20-round magazine, I can provide those as well.