In 2008, an upgraded version of the gun, the HK416A5, was introduced. It features an improved tool-less adjustable gas regular for easier suppressor use, a redesigned lower receiver with ambidextrous fire controls, optimized magazine and ammunition compatibility, a repair kit housed in the pistol grip, and a Flat Dark Earth color scheme. The storage space is removed from the redesigned buttstock. It uses the newer V2 HK Battle grip and the handguard uses a new hexagonal cross bolt that can’t be removed by the bolt locking lugs. It must be done with a takedown tool housed in the grip.