155mm Modular Artillery for Combat Effectiveness (MACE)

Updated Oct 28, 2026

Solicitation from the Department of the Army. Due Nov 30, 2026, 3:00 PM (UTC-5), 33 days left.

Bid documents (10)

• Attachment 9: Packaging and Unitization - MUST BE SUBMITTED FOR TDP controlled: request access on SAM.gov
• Attachment 8: Purchase Description - MUST BE SUBMITTED FOR TDP ACCESS controlled: request access on SAM.gov
• Attachment 17 - 3D Model Creation and Standardization Guidance Document controlled: request access on SAM.gov
• Attachment 18: Contract Quality Requirements for MACE controlled: request access on SAM.gov
• Attachment 19: M1128 Base Bleed Package controlled: request access on SAM.gov
• Attachment 20: MACE BB Motor Assembly Components controlled: request access on SAM.gov
• Attachment 21: rf smoke payload controlled: request access on SAM.gov
• Attachment 22: Specifications M1128 Base Burner 5 controlled: request access on SAM.gov
• Attachment 26: Updated MACE Offeror Questions Addressed (Dated10-15) 25 KB
• PPON MACE Extended Updated Attachments- (Dated 10-15) 75 KB

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Description

Amendment 0007 - The purpose of this Amendment 0007 is to extend the solicitation response deadline, incorporate updated questions and answers, and issue revised solicitation attachments. Specifically, this amendment: Extends the Proposal Submission Deadline: The solicitation response deadline is extended from October 30, 2026, to 1500 EST on November 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 that deliver the best value to the Government.

As a result, the Prototype Project Opportunity Notice (PPON Document: PPON MACE EXTENDED November 30 W15QKN26R1C5R Dated 10-27) has been revised to reflect the new response deadline and the updated attachments list. Incorporates Updated Attachments: The following updated attachments are formally incorporated into the solicitation and replace all previous versions: Attachment 27 Updated MACE Offeror Questions Addressed (Dated 10-26), incorporating Questions #17 through #19.Attachment 28 Updated Statement of Work (SOW) (Dated 10-26), reflecting the revised anticipated award date of March 29, 2027, while maintaining relative milestone durations.

Attachment 29 Updated MACE CLIN Matrix (Dated 10-26), incorporating dedicated Non-Recurring Engineering (NRE) line items pursuant to Question #17. Instruction to Offerors: All Offerors shall use the timelines, relative durations, and CLIN structures specified within these amended documents as the sole, definitive basis for their proposal submissions, including their Technical, Schedule (IMS), and Cost/Price volumes. End of Narrative 0007 Amendment 0006 - The purpose of amendment 0006 is to update the Question and Answer document from Attachment 23 - Updated MACE Offeror Questions Addressed 10-5 to Attachment 26 - Updated MACE Offeror Questions Addressed 10-15.

This amendment also updates the PPON (PPON MACE Extended Updated Attachments (Updated 10-15)) to add Attachment 26 to the attachment list.End of Amendment 0006Amendment 0005 - The purpose of this Amendment 0005 is to resolve the schedule discrepancies identified in the solicitation and provide the definitive baseline for all proposal submissions. Specifically, this amendment: The Government acknowledges the discrepancy between the delivery dates specified in the original Statement of Work (SOW) (Attachment 7) and the performance periods specified in the original MACE CLIN Matrix (Attachment 4), which was caused by the proposal submission extension in Amendment 0001.

This Amendment 0005 provides a revised and corrected Statement of Work (SOW) and CLIN Matrix. All schedule milestones have been aligned to relative durations (Months After Agreement Award) to ensure a stable, executable performance period. Amendment 0005 also adds the Updated MACE Questions Addressed plus an updated PPON which lists the amended attachments.

The following updated attachments are formally incorporated into the solicitation and replace all previous versions: Attachment 25 Updated Statement of Work (SOW) (Dated 10-6) Attachment 24 Updated MACE CLIN Matrix (Dated 10 6) Attachment 23 Updated MACE Questions Addressed (Dated 10-5) PPON Document MACE Extended Updated Attachments W15QKN 26R1C5R (Dated 10-6) All Offerors shall use the timelines, relative durations, and CLIN structures specified within these amended documents (updated attachments October 5 and 6, 2026) as the sole, definitive basis for their proposal submissions, including their Technical, Schedule (IMS), and Cost/Price volumes. End of Amendment 0005Amendment 0004 - The purpose of amendment 0004 is to update the Question and Answer document from Attachment 15 - Updated MACE Offeror Questions Addressed 9-17 to Attachment 16 - Updated MACE Offeror Questions Addressed 9-24.

Amendment 0004 also serves as notification that 6 additional TDP documents have been uploaded to SAM.gov. Vendors who have already been approved for the TDP can access the documents immediately, and those not previously approved may request access through SAM. End of Amendment 0004Amendment 0003 - The purpose of this amendment 0003 is to add Attachment 15 - Updated MACE Offeror Questions Addressed 9-17 End of Amendment 0003Amendment 0002 - The purpose of this amendment 0002 is to add Attachment 15 - MACE Offeror Questions Addressed. End of Amendment 0002 Narrative

The description continues in the official notice.

Contracting contact

• Mary O'CONNELL · [email protected]
• Christopher Brown · [email protected]

As published on the official notice. Ask questions in writing and before any questions deadline the notice sets.

Is your business small enough?

For NAICS 332993, a business counts as small if it has no more than 1,500 employees (SBA size standard). This notice is not set aside, but the size decides your small business status on it. SBA table, current as of Oct 15, 2026.

Notice history

• Oct 16, 2026: Solicitation Due Oct 30, 2026, 3:00 PM (UTC-4)
• Oct 6, 2026: Solicitation Due Oct 30, 2026, 3:00 PM (UTC-4)
• Sep 24, 2026: Solicitation Due Oct 30, 2026, 3:00 PM (UTC-4)
• Sep 24, 2026: Solicitation Due Oct 30, 2026, 3:00 PM (UTC-4)
• Sep 18, 2026: Solicitation Due Oct 30, 2026, 3:00 PM (UTC-4)
• Sep 9, 2026: Solicitation Due Oct 30, 2026, 3:00 PM (UTC-4)
• Sep 1, 2026: Solicitation Due Oct 30, 2026, 3:00 PM (UTC-4)
• Sep 1, 2026: Solicitation Due Oct 30, 2026, 3:00 PM (UTC-4)

Companies that win this kind of work

Federal contractors paid for ammunition manufacturing work, who also hold Army contracts (last 12 months): possible competitors, or partners to team with.

• The Boeing Company $1.3 billion in this trade
• Raytheon Company $1.0 billion in this trade
• General Dynamics OTS (Wilkes Barre), LLC $389.5 million in this trade
• Amtec Corporation $283.1 million in this trade
• Northrop Grumman Systems Corporation $252.3 million in this trade

About the buyer

The Department of the Army awarded $84.6 billion in contracts in the last 12 months; its biggest suppliers were Lockheed Martin Corporation, Raytheon Company and The Boeing Company. See what Army is buying now.

Ammunition Manufacturing contracts right now

There are 9 open government contract opportunities in this trade (NAICS 332993), 3 posted in the last 7 days; 33% are set aside for small businesses. The agencies buying the most are Department of the Army, Defense Logistics Agency and Department of the Air Force. Most of the work with a stated place is in New Jersey, Arkansas and Missouri. A notice in this trade gives a median of 28 days from posting to deadline; this one gives 34 days.

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