SAM #MOSAIC-27-01

Army call for mature tracked 155 mm howitzer and resupply vehicle prototype solutions

The U.S. Army’s Call for Solutions seeks mature tracked artillery and resupply capabilities for its Mobile Tactical Cannon–Tracked (MTC-T) effort. - Opportunity and buyer: U.S. Army Contracting Command–Detroit Arsenal (ACC-DTA), office designation updated to W6QK ACC-DTA; the call is associated with PM Howitzer Systems and PAE Fires. - What is sought: A production-ready tracked 155 mm self-propelled howitzer (MTC-T SPH) and compatible tracked resupply vehicle (RSV-T), offered as an integrated capability set. The howitzer requirement includes armament greater than 50 calibers. - Prototype quantities and schedule: The Army seeks up to 18 systems of each vehicle type, prioritizing delivery of six sets as early as possible. The pricing schedule lists vehicles 1–6 as base deliveries (vehicle 1 within 90 days after award; vehicles 2–6 within 360 days); vehicles 7–18 are identified as unfunded milestones. The main call also requests ROM pricing for three sets within 12 months and three more within 18 months. - Readiness and performance expectations: Offerors should demonstrate an existing production line and credible testing, safety, and evaluation maturity. Solutions must address U.S. 155 mm ammunition and fire-control interoperability, cybersecurity, sustainment, technical data rights, and resilient U.S. production. The stated production objective is readiness in CONUS within 24 months, initially supporting 18 sets per year and a potential ramp to 40 annually. - Other work and deliverables: The pricing schedule includes integration and engineering, testing and soldier evaluation support, training, ammunition and proof-gun-related items, supply-chain and safety documentation, and optional technical data and software packages. Some later milestones are unfunded or TBD. - Acquisition approach and dates: The Army anticipates one or more Other Transaction prototype project agreements and may select all, some, or none of the submitters. Solution briefs are due November 16, 2026, at 3:00 p.m. ET; the Phase 1 question deadline is November 10 at 3:00 p.m. ET. Updated CDRLs and the MTC-T OTA Prototype Project Agreement were posted November 2, 2026; the November 3 update changed the office designation and did not change attachments. - Named suppliers and pricing: No candidate system OEM or offeror is identified. Appendix E shows zero prices, so the notice does not establish a contract value. The Proof Gun Stand overview describes a government platform and is not a priced purchase order.

Description

Updated 03 November 2026: Updated the office to W6QK ACC-DTA.

Updated 02 November 2026: Added the updated MTC-T OTA Prototype Project Agreement and Attachment 001 Contract Data Requirements Lists (CDRLs) which removed the restrictions that previously prevented opening these files on non-Government computers.

The Army Contracting Command – Detroit Arsenal (ACC-DTA), is seeking a mature and available tracked self-propelled 155mm howitzer system, Mobile Tactical Cannon-Tracked (MTC-T), from existing production lines with a credible baseline of testing, safety, and evaluation already completed.  In accordance with Open Solicitation Procedures detailed within Solicitation W50RAJ-26-S-0001, the Government intends to award one or more Other Transaction (OT) for Prototype Project pursuant to 10 USC 4022 (formerly 10 USC 2371b). The Government further reserves the right to award to all, part, or none of the companies who submit proposals. This Call for Solution (CFS) will utilize CSO procedures in accordance with 10 U.S.C. 4022.

The Call for Solutions (CFS) document outlines the problem statement, submission requirements, and evaluation phases. Draft attachments are provided to offer broader context regarding the anticipated requirements and to facilitate proposal development by vendors selected to submit a proposal. These draft materials are provided for informational purposes only and remain subject to revision.

The deadline to submit questions for Phase 1 is November 10 at 3:00 PM ET. The following shall be utilized in the email subject line: "CFS – MTC-T and Resupply Vehicle – Tracked (RSV-T) Capability Solutions MOSAIC-27-01"

The Munitions Open Solicitation for Advanced and Innovative Capabilities (MOSAIC), Notice ID W50RAJ-26-S-0001, that this Call for Solution is associated with can be found at:

https://sam.gov/workspace/contract/opp/09563a1efa61455c9fa5c3ccc3570453/view

Additional Links:PAE Fires MOSAIC

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