What project 6639 buys
This line develops a Multiple Launch Rocket System (MLRS) Family of Munitions (MFOM) Launcher Unit (MLU). The MLU will interface with Medium-range Missile (MMSL) Remotely Operated Ground Unit for Expeditionary Fires (ROGUE-Fires) carriers providing the additional capability to fire the entire complement of MFOM. This modular capability is an essential element of the Marine Corps artillery modernization strategy as it affords operational flexibility for the artillery regiments and Marine Littoral Regiments (MLR) to utilize Navy/Marine Expeditionary Ship Interdiction System (NMESIS) or MLU. The MLU will consist of a MLU sled (launch unit with a Common Fire Control System (CFCS)) and a weapon control system (Remote Gunner Station (RGS)). The RGS is a modular, scalable tablet that can be operated from a Mobile Command Vehicle as well as from a command post and is being adapted to control up to three MLUs per section. The MLU sled will be mounted upon a ground-based, tele-operated carrier (ROGUE-Fires) and will be capable of firing Guided Multiple Launch Rocket System (GMLRS), Reduced Range Practice Rocket (RRPR), Precision Strike Missile (PrSM) series, and other MFOM-related munitions that the HIMARS platform can accommodate. A ROGUE-Fires leader-follower kit will be capable of steering up to three systems. This effort includes design, development, integration, and test of the MLU and RGS for interface with the ROGUE-Fires carrier. The MLU makes extensive use of existing systems to increase operational flexibility and reduce procurement and product support. FY 2026 completed the development of one-to-one radio-controlled operations, continued development for the one-to-three radio-controlled operations of the MLU, purchased test assets, and conducted developmental testing. FY 2027 completes the development of the one-to-three radio-controlled MLU operations and conducts testing.
- Product Development
- Support
- Test and Evaluation
Project 6639 funding, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 7.9 |
| FY2026 | Enacted | 29.0 |
| FY2027 | Request | 9.4 |
| FY2028 | Outyear | 4.6 |
| FY2029 | Outyear | 11.4 |
| FY2030 | Outyear | 0.0 |
| FY2031 | Outyear | 0.0 |
1 accomplishment / planned program
The R-2A exhibit — the only level of the budget that describes work that has not happened yet. Activities carry the prior, current and budget year only, no five-year plan. Coverage is partial across the corpus, so count activities, never total them.
FY2027 planned work - Completes development for one-to-three radio-controlled MLU operations - Conducts developmental testing including transportability, shock/vibration, environmental, and Electromagnetic Environment Effects (E3)
FY2026 to FY2027 change The decrease from FY 2026 to FY 2027 reflects the completion of test asset purchases.
FY2026 plans — current year - Completed development of one-to-one radio-controlled MLU operations - Completed development of RGS - Initiated development for one-to-three radio-controlled MLU operations - Purchased ROGUE-Fires test assets for integration and developmental testing - Purchased Precision Strike Missiles (PrSM) munitions for developmental testing - Purchased Extended Range (ER) GMLRS munitions for developmental testing - Conducted developmental testing including transportability, shock/vibration, environmental, and Electromagnetic Environment Effects (E3)
Named performers on project 6639
Performers named in the R-3 exhibit under this project. Share is of the project's whole FY2027 R-3 total — the same denominator the program-element split uses, so the two read on one scale and will not sum to 100% when unnamed or government work is in the mix. Budget-justification contract funding, not obligations.