# 155mm Modular Artillery for Combat Effectiveness (MACE)

Canonical: https://abierto.us/opportunities/w15qkn26r1c5r

- Solicitation number: W15QKN26R1C5R
- Notice type: Solicitation
- Status: Open. Offers due October 30, 2026 at 3:00 PM EDT
- Department: Department of the Army
- Agency: Department of the Army
- Contracting office: W6QK Acc-Ri-Picatinny (W15QKN)
- NAICS: 332993 Ammunition (except Small Arms) Manufacturing
- Product or service code: 1320 Ammunition, over 125 mm
- First posted: August 19, 2026
- Last posted: September 9, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/fa66d61a8bff44ba8a3390d1d4b35af2/view

## Description

Amendment 0002 - The purpose of this amendment 0002 is to add Attachment 15 - MACE Offeror Questions Addressed.     *********************End of Amendment 002 Narrative ********************************************************************************************************************************************************    Amendment 0001 - The purpose of this amendment 0001 is to extend the solicitation response deadline from September 30, 2026 to October 30, 2026. This extension is granted to ensure all potential offerors have sufficient time to conduct thorough analyses, address recent technical clarifications, and submit comprehensive, high-quality proposals which deliver the best value to the Government. As a result of the extension, the Prototype Project Opportunity Notice (PPON) has been revised to reflect the new response deadline.  Attachment 1 - Terms and Conditions has been updated in Supplement 5, Sub Section number 2 Outside Funding Contribution Schedule to change the Basic Agreement Years from FY 2026, FY 2027, FY 2028 to FY 2027, FY 2028, FY 2029.                                                                                                                                                                                                                                                               ****End of Amendment 0001 Narrative******************************************************************************************************************************                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               155mm Modular Artillery for Combat Effectiveness (MACE) - Please refer to Prototype Project Opportunity Notice (PPON) and attachments. Please note:  Attachment 8 - Purchase Description and Attachment 9 - Packing and Unitization Drawings will be provided to Offerors upon request once the Offeror signs, completes and submits the following documents for contracting approval: Attachment 12 Technical Data Request Questionnaire; Attachment 6 Non-Disclosure and Non US Agreement plus Attachment 14 DD2345 Military Critical Technical Data Agreement.  Please refer to section 8 of the PPON for further information.

## Attachments

- [eea965f76eee4495814285c27898924f](https://dodprocurementtoolbox.com/)

## Publications

- August 19, 2026: Solicitation, due September 30, 2026 at 3:00 PM EDT. Notice a2691e8f4dc14421a870f372bd22500d. https://sam.gov/workspace/contract/opp/a2691e8f4dc14421a870f372bd22500d/view
- August 19, 2026: Solicitation, due September 30, 2026 at 3:00 PM EDT. Notice db2454135ee1422b92830c4b8bd798ea. https://sam.gov/workspace/contract/opp/db2454135ee1422b92830c4b8bd798ea/view
- August 31, 2026: Solicitation, due October 30, 2026 at 3:00 PM EDT. Notice 39a64025333145ba849b314a955ea60f. https://sam.gov/workspace/contract/opp/39a64025333145ba849b314a955ea60f/view
- September 1, 2026: Solicitation, due October 30, 2026 at 3:00 PM EDT. Notice 9303e872d3f44134afa3d740e945f1fe. https://sam.gov/workspace/contract/opp/9303e872d3f44134afa3d740e945f1fe/view
- September 1, 2026: Solicitation, due October 30, 2026 at 3:00 PM EDT. Notice a468482ec35b43e4933f3cd5982ba9e9. https://sam.gov/workspace/contract/opp/a468482ec35b43e4933f3cd5982ba9e9/view
- September 9, 2026: Solicitation, due October 30, 2026 at 3:00 PM EDT. Notice fa66d61a8bff44ba8a3390d1d4b35af2. https://sam.gov/workspace/contract/opp/fa66d61a8bff44ba8a3390d1d4b35af2/view

## Points of contact

- Mary O'CONNELL, mary.p.oconnell3.civ@army.mil
- Christopher Brown, christopher.w.brown7.civ@army.mil

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/w15qkn26r1c5r.