So you say you saw colt 6920's for $1500-1600?
Too expensive you thought, so you bought a S&W MP15 and saved ALMOST 500 dollars. That means you probably spent over 1100 on a S&W MP15. I don't want to get you upset, but you got RIPPPPPEDDDDDD OFF.
There are a few rules when you buy guns, the list as follows:
1) Only suckers buy at the MSRP (which is what you did, possibly even more)
2) Shop around at multiple gun shops
3) Shop around online
4) Once you realize you can buy almost any gun for HUNDREDS of dollars cheaper off gunbroker, never buy in a gun shop again.
5) Find the gun shop with the cheapest transfer fee's and have all your guns sent there.
If you look online right now you can probably find half a dozen new in box Colt 6920's selling for $1100 + 25 shipping. The bidding often war doesn't go to high, I see them sell regularly for 1100 flat.
I bought my XDm new in box for $500 on gunbroker, they are selling in local gun shops for $650-700.
My advice, is if you didnt shoot your new rifle, go back with a SOB story and tell the guy you need the money or you will lose your house or something and dont ever go back. You got ripped off and that guy took the money laughing all the way to the bank.
The colt 6920 is the premium AR on the market, it's built 100% to military spec and is the standard issue rifle of the US Army. It is the most sought after rifle by our law enforcement community.
Military spec MEANS ALOT. Alot of people however will tell you it means jack, thats because they are happy with their 600-800 dollar AR's and don't want their pride kicked in the dirt.
These are also the same people who generally only shoot 3 or 400 rounds over 5 years and claim their rifle is as good as any "fancy pants" rifle. Their rifles dont have a chance to break, so they cant really complain. There are exceptions to the rule, but you know you're getting top of the line when you get a colt 6920.
If you have any more questions feel free to ask away.
The S&W MP15 is not a bad rifle by any means, but it is no where near the quality of a 6920. I would normally tell people to save up an extra $200-300 and just buy the colt 6920 over a SWMP15, Stag, Bushmaster, etc, and have 100% confidence you're getting a 100% mil spec PROVEN assault rifle. But you already spent more than the price of a 6920 on a rifle that isnt even in the same class.
Hopefully you can correct the situation.