jamesp15
Active Member
I hope this post is ok. I recently purchased a bare AR15 lower and want to build it up. I understand that HBAR is required in MD.
My question is... If I go with a piston system, does it still need to be an HBAR or could it be another barrel profile and be legal since its no longer a DI system like the Colts? I want to make it with an 18" or even 20" barrel and finding HBAR or ones marked heavy are not very common...
Any other gotchas I need to look out for for MD compliance? This is my first AR build (have owned others, but they were all pre-built.)
If in the future I decided to make one in 7.62x39, would that have to be a heavy barrel as well?
If these are answered elsewhere I apologize, and could you provide a link or search term(s) to use? I could not find anything definitive with a quick search.
My question is... If I go with a piston system, does it still need to be an HBAR or could it be another barrel profile and be legal since its no longer a DI system like the Colts? I want to make it with an 18" or even 20" barrel and finding HBAR or ones marked heavy are not very common...
Any other gotchas I need to look out for for MD compliance? This is my first AR build (have owned others, but they were all pre-built.)
If in the future I decided to make one in 7.62x39, would that have to be a heavy barrel as well?
If these are answered elsewhere I apologize, and could you provide a link or search term(s) to use? I could not find anything definitive with a quick search.