What project 516 buys
Project 516 is to modernize the field artillery to address obsolescence, improve performance and address emerging threats. The Self-Propelled Howitzer is an indirect fire weapon system with the ability of delivering accurate, long range, lethal and non-lethal cannon fires in support of both Combined Arms Maneuver (CAM) and Wide Area Security (WAS) operations. The Self-Propelled Howitzer and Ammunition Resupply Vehicle can be employed within any Brigade Combat Team formation to neutralize, suppress, or destroy enemy forces, while providing protected transport of a field artillery howitzer section on the modern battlefield. This effort will include system usage and optimization studies, simulations, development engineering, Line Replacement Unit (LRU) prototype development and procurement and validation for incremental upgrades of field artillery.
- Management Services
- Product Development
Project 516 funding, FY2025–FY2027
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 | 40.9 |
| FY2026 | Enacted | 16.5 |
| FY2027 | Request | 12.6 |
2 accomplishments / planned programs
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 Continue engineering development activities.
FY2026 to FY2027 change Decrease in engineering development activities. In FY 2027 funding will support two new efforts for the M109A7 (PIM) FOV: BiDi/Gen Inv Obsolescence and a cyber security improvement (managed switch) while continuing to fund and complete FY 2026 efforts such as the Digital Transformation, software updates, and emerging obsolescence.
FY2026 plans — current year Continue engineering development activities.
FY2025 accomplishments Continue engineering development activities.
FY2027 planned work Develop and manage detailed schedules for modernization activities, establish and execute contracts, and coordinate all programmatic documentation.
FY2026 to FY2027 change Increase in projected requirement due to revised economic conditions.
FY2025 accomplishments Develop and manage detailed schedules for modernization activities, execute orders, and begin development, production, and coordination for all required programmatic documents.