http://www.dsarms.com/DSA-ZM4-Forged-7075T6-A3-AR15-Upper-Receiver---DSZM4CBU/productinfo/DSZM4CBU/ 275.00 upper receiver with 16" bl, flat top

http://www.dsarms.com/Model-ZM4-Complete...ctinfo/DSZM4R2/ 180.00 complete lower with mil-spec buffer and m4 stock

http://www.dsarms.com/ZM4_AR15-Alloy-Charging-handle-Complete/productinfo/ZM48518/ 18.00 charge handle

http://www.dsarms.com/ZM4_AR15-Semi-Auto-Complete-Bolt-Group-Assembly/productinfo/ZM4BCG/ 110.00 bolt and carier

583.00 before shipping and a FFL transfer for a all DSA AR-15. They also have different upper receivers that are a bit more for the mid-length (my favorite gas system for a 16" brl).

Men you can't trust, women you can't trust, beasts you can't trust, but Bussekin steel you can trust