1. Introduction 2. Laws Governing Building Your Rifle 3. Variations or Types of AR15s Introduction a. Characteristics of the A1 b. Characteristics of the A2 c. Characteristics of the A3 d. Characteristics of the CAR & M4 4. Options and Specifications For Ordering Parts Introduction a. The Upper Receiver Introduction, and Common Subassemblies i. Specific Parts for the A1 ii. Specific Parts for the A2 iii. Specific Parts for the A3 b. The Lower Receiver Introduction, and Common Subassemblies i. Specific Parts for the Mil Spec Trigger Group ii. Drop in Triggers c. Buttstocks Introduction and Overview i. Telescoping Buttstocks ii. Fixed Buttstocks d. Barrels Overview and Specifications e. The Bolt Carrier and Bolt 5. Tools Needed for Assembly 6. The Check List for Ordering Parts 7. Assembly Introduction 8. Assembling the Upper Receiver Introduction a. Assembling the Ejection Port Cover b. Assembling the Forward Assist Plunger c. Installing the Forward Assist d. A1 Sights e. A2 Sights 9. Assembling the Mil Spec Barrel Overview a. Installing the Barrel into the Upper Receiver and the Delta Ring Assembly b. Installing the Front Sight Base and Gas Block c. Installing a Flash Hider or Muzzle Brake 10. Assembling a free float barrel a. Installing the Barrel Into The Upper Receiver b. Installing an Picatinny Rail Gas Block 11. Assembling the Lower Receiver a. Installing the Magazine Catch b. Installing the Bolt Catch c. Installing the Pivot Pin d. Installing the Trigger Group e. Installing the Safety Selector and Pistol Grip f. Installing the trigger guard 12. Assembling the Mil Spec Fixed Buttstock 13. Assembling the Mil Spec Telescoping Stock 14. Assembling the Bolt Carrier and Bolt 15. Assembling the Operating Handle and Checking the Head Space 16. Function Checking at the bench 17. Function Checking at the Range 18. Cleaning and Maintenance