HK Extended Castle Nut Compatibility with AR-15 Buffer Tubes
1 year ago
31
Is the extended castle nut seen on the HK 416A5 compatible with Mil-Spec buffer tubes? What's the purpose of the extended castle nut? In this video I attempt to answer both these questions and show a few different Mil-Spec buffer tubes and how they work with the HK castle nut.
Timestamps
0:00 - Introduction
1:05 - Mil-spec buffer tube
3:02 - Enhanced buffer tube
4:48 - Function check
7:40 - Why use an extended castle nut?
9:25 - Conclusion
Originally uploaded on YouTube: 2022-08-06
Recording date: 2022-07-28
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