I have a question for the Bushy experts. I bought my Bushmaster back in Oct, and due to military travels was unable to really look at it until now. I got the last one on the rack, another guy was waiting on approval from his minister of finance (wife), so I snaked it. So my question is this, the barrel is marked 8 MP 5.56 NATO 1/9 HBAR and the lower is stamped MOD XM15-E2S. I couldn’t find this model on the website; I assume it is a heavy barrel 20”. I did not intend to buy this, but I assume this is good? I am kind of excited about this setup, since it was not what I thought I was getting. I only paid $885 bucks for it, which I assume is a good deal? It is an A3 model, under lug with a bird cage. Thanks in advance for your reply.