Complete Rail Adapter System for M4-Series carbine. Includes clamp-on replacement handguard, rail covers, and vertical pistol grip. Consists of the following components:
| Type | NSN | Nomenclature | ARC | SEC | Unit | Quantity |
|---|---|---|---|---|---|---|
| BII | 0000-00-000-0000 | RAIL PANEL CARRYING CASE | X | U | EA | 1 |
| BII | 1005-01-453-1633 | HANDGUARD, LOWER ASSEMBLY | D | U | EA | 1 |
| BII | 1005-01-453-4222 | 6 RIB RAIL COVER ASSEMBLY | X | U | EA | 2 |
| BII | 1005-01-453-4223 | 4 RIB RAIL COVER ASSEMBLY | X | U | EA | 1 |
| BII | 1005-01-453-4227 | HANDGUARD,UPPER ASSEMBLY | D | 1 | EA | 1 |
| BII | 1005-01-453-4228 | 2 RIB RAIL COVER ASSEMBLY | X | U | EA | 2 |
| BII | 1005-01-453-5386 | 11 RIB RAIL COVER ASSEMBLY | X | U | EA | 4 |
| BII | 1005-01-453-6655 | VERTICAL PISTOL GRIP | X | U | EA | 1 |
