New Build, Input Requested

[Mrlxt]

Hey all, this will be my first ever AR build. I set out to create this build to replace my current hunting rifle (Rem 700 .308) with something shorter, lighter and just as effective at ranges less than 500 yd. The game to be taken ranges from Deer to Javelina. My overall budget with glass is $1500.00.

Any input on part changes, upgrades or suitable replacements that are more cost effective will be greatly appreciated. Also, if I missed a part that I need please let me know.

Stripped Lower and Upper Receivers from Aero Precision
Upper and Lower Parts Kits from Aero Precision
Stock - Fixed Magpul MOE
Barrel and Bolt - Stoner Barrel 18" Stainless http://www.midwayusa.com/product/2228479...less-steel
Brake - GRG 9/16x24 Competition Muzzle Break
Gas Block - Daniel Defense Low Profile
Gas Tube - Mid Length from BCMor Shark Mouth
Hand Rail - AR15 KeyMod Octagonal 10" Spect
BCG and CH - PSA 5.56 Full Auto NiBo
Buffer Kit - http://www.brownells.com/rifle-parts/rec...27315.aspx

Glass is still up in the air, any affordable options will be considered.
Options for Glass considered were the Sparc 2 w/ a Magnifier.