HK MR223A3 vs. MR556A1 Differences
Discussing the major differences between the European HK MR223A3 and the HK USA MR556A1. Timestamps 0:00 - Introduction 1:02 - Buffer tube 2:28 - Upper and lower receiver 4:43 - Barrel extension pin 5:20 - Differences from HK416A5 6:12 - Barrel 7:57 - Furniture differences 9:01 - Conclusion Links • HK416/MR556 and AR-15 Parts Compatibility
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