The G36 KA4 is a variant of the G36K featuring an updated Picatinny rail handguard replacing the standard G36K integrated optic housing, allowing the use of modern accessory and optic systems. Produced for export customers and special operations units requiring modular accessory attachment without the integrated G36 optic system. Type: Assault Rifle Action: Short-Stroke Gas Piston Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2003, Germany Weight: 6.9 oz Overall length: 31.97" Status: Active Military use: Yes Intended use: Military Use, Special Operations