Just got my hands on an HK MR223 A3 in Ral 8000 with a 14.5" Barrel as well as a Slim Line Handguard. It's just awesome! Especially with my H&K SP5K. And yes our European version has a chrome plated barrel (https://www.heckler-koch.com/en/prod.../overview.html) as well as an ambi bolt release. Greetings from Switzerland.