The gun is securely fastened by the claw scope mount rail built-in into the MP5K’s top. The gun is held securely, and the muzzle fitted into a replaceable plastic collar on the briefcase’s side.

"The SP5K is a unique and historic HK pistol that captures the essence of the legendary MP5K but as a semi-auto handgun," said Michael Holley, HK-USA Vice President for Commercial Sales and Marketing.