hi from Hawaii! I'm new to this forum and in search of information (I used the search bar and have not found exactly what I was looking for) . my question is I recently purchased a 24in upper from hardened arms and I was wondering if I would have any issues running it on a carbine length lower, I've ran my 20in 223 lower on it with no issues but wondering if the Grendel would have a different impact on it.
Thanks in advance
Thanks in advance
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