This is the first ar15 i am going to build.  I was hoping you guys could tell me if i was missing any essential parts or if there is anything you would recommend i change.

I will be adding the chrome lining to the barrel
www.del-ton.com/AR_15_Barrel_Assembly_p/dt1014.htm
www.del-ton.com/AR_15_Buttstock_p/bs1053.htm
www.del-ton.com/Stag_Arms_Lower_Receiver_p/lr1004.htm

Decent starter rifle.

Many would prefer the A3 version with a removable handle these days, if available.

This may be a stupid question but was is the normal round an ar15 shoots.  Is the gun i have posted 223-5.56 ?

Quoted: This may be a stupid question but was is the normal round an ar15 shoots.  Is the gun i have posted 223-5.56 ?

What's stamped on your barrel? An example "C MP 5.56", etc.   The AR shoots .223 & 5.56. Most standard AR's these days are chambered for 5.56. You can shoot .223 out of an AR chambered for 5.56, but you should not shoot 5.56 out of an AR chambered for .223. You should make sure what your particular AR is chambered in before you shoot.

Thank you both for the help.

I would get the stock somewhere else.  $70 for a no-namebrand 6-pos M4 stock is steep.  Everything else looks great to me.  You'll need a CAR stock wrench to put the stock nut on.

www.ar15.com/forums/topic.html?b=7&f=125&t=263404

Derek is the man.  He has stocks out the wazoo, ships ultra-fast, and can kick in a wrench for $2.50 (half the price everywhere else) to boot.  Del-ton is awesome, but they're out there on the stock prices.  

Oh yeah, you'll want to order the lower and upper separately (both Del-ton, but two orders).  If you buy them together, you have to pay an extra tax on a whole rifle (at least that's what I was told).

Is Derek a company if so what is the link, nothing came up when i searched it.

Derek = TheTic00 = the guy with the stocks at that link I posted above.