Interesting.
Has me thinking about what to do with my AWB "ban compliant" Bushy.
Everything I've read about the VLTOR A5 extension has me thinking that it's one of the better solutions for a rifle-length system. I figure this should incur the least amount of headache with such a setup.
That said, part of me wants to do a pinned 14.5" M4-style setup and go for a lighter weight build.
So many choices...