HK416/MR556 and AR-15 Parts Compatibility

In-depth part-by-part discussion on compatibility between HK416/MR556 parts and the AR-15, with a specific focus on HK416 A5 parts.

Timestamps
0:00 - Introduction
0:56 - Stock
1:36 - Buffer tube (receiver extension)
3:20 - Castle nut
7:20 - Buffer
9:12 - Takedown and pivot pins
10:00 - Fire control group
13:43 - Trigger guard
15:50 - Bolt catch
17:28 - Magazines
18:22 - Charging handle
18:44 - Cam pin
19:28 - Forward assist
19:49 - Dust cover
20:54 - Barrel
22:52 - Conclusion