| Part Name | Function | | :--- | :--- | | Magazine Body | Holds cartridges (standard 30 rounds). | | Follower | Pushes rounds upward. | | Spring | Provides upward force. | | Floor Plate | Seals bottom of magazine. |
The BCG is the heart of the rifle's operation. Ar 15 Parts List Diagram
[1] Flash Hider | [2] Front Sight (Gas Block) |-------------------\ [3] Handguard (Rail) [4] Gas Tube (inside) | | [5] Barrel | | | [6] Delta Ring (or barrel nut) | [7] Upper Receiver -------------------\ | | [8] Charging Handle (rear) [9] Bolt Carrier Group (inside) | | [10] Ejection Port (with dust cover) | | | [11] Forward Assist | | | [12] Rear Sight (on receiver) | ===== Takedown / Pivot Pin ===== | [13] Lower Receiver | \ [14] Pistol Grip [15] Trigger Guard | \ [16] Safety Selector [17] Trigger | \ [18] Magazine Release [19] Hammer (inside) | [20] Magazine Well | [21] Bolt Catch | [22] Buffer Tube (inside stock) | [23] Buttstock (with adjustable positions) | [24] Receiver End Plate & Castle Nut | Part Name | Function | | :---
A visual diagram is the best way to understand how these parts interact. You can find detailed schematics and printable diagrams on sites like M*CARBO or Brownells . | | Floor Plate | Seals bottom of magazine
