| Part Number | NSN | Part Name | |
|---|---|---|---|
| MK0220 | 1005-01-645-3820 | Weapon Mounted Adapter Rail | Quote |
| MK0017 | 1005-01-645-3827 | Compression Helical Spring | Quote |
| MK1300-0003 | 1005-01-645-3829 | Breech Bolt | Quote |
| MK0102 | 1005-01-645-5080 | Breech Bolt | Quote |
| MK0010 | 1005-01-645-5083 | Cartridge Extractor | Quote |