So today was my pickup day for my LMT Defender Standard Patrol Model. I mean these 10 days, let's just say I have been a tad eager. So I get there on time, wait about 40 agonizing minutes for a salesperson, he takes my paperwork, checks my ID and goes off to the back to retrieve my firearm. Following this I watched as the salesman went from their storage area to the office and back again, back to the office...get's on the computer....storage.....office....get's on the phone. And so on, and so forth. By this time I know there is a snafu. Turns out there is no AR with the serial number on my paperwork . Don't ask me how.....I was so pissed it was taking all my self control to not lose it ......so whatever they said to me, went in one ear and out the other. Something about the computer generating a random serial number or something. I know what I heard them say, but I don't even want to go there 'cos I couldn't make sense of it.....something about it being a "training" serial number and not an actual weapon serial number.: Look, they seemed genuinely sorry and offered me the display model...I declined as it had been handled a fair bit...they also offered me a $50 store credit if I waited for a new one, but there was no way I was waiting until next week Wednesday to get one shipped. They were trying to accommodate me though. Then, in a flash of brilliance it came to me. I asked if I could go up and they said yes. So I upgraded then and there! I upped to an LMT Defender CQB MRP 16" model. (Non piston) It is a super piece and just to handle it feels solid. Well, obviously I have yet to put it through it's paces for the true test, but what is great is: No having to figure out what quad rail to buy, and..... maybe having to change the gas block no having to get a better stock or buy a detachable front sight comes with quick detachable sling swivels And......it has a removable barrel.....with the ability to switch to 6.8SPC or .204 Ruger. Comes with a torque wrench and torx bit to change barrels If I had upgraded my SPM with all the above goodies, it would have cost way more....... and that is without being able to swap barrels/calibers. Pretty dang cool. I love the monolithic rail platform. So now I have the firearm, my Simmon's scope with a Burris mount, a Vortex Sparc RDS, a Laserlyte boresighter, Magpul ASAP and MS2 sling, Magpul enhanced trigger guard and the picatinny mount for my Contour HD video cam....(plus 200 rds Remington UMC 55grain and 100 rds federal XM-193...for now ) I think I am good to go for a while. Very happy. So thank you to all who tried to help me with quad rail choices and other stuff.....it is all moot now as I am good to go out the box. I cannot hardly wait to send some rounds down the spout.