155mm Modular Artillery for Combat Effectiveness (MACE)

Updated Nov 10, 2026

Solicitation from the Department of the Army. Due Nov 30, 2026, 3:00 PM (UTC-5), 20 days left.

Bid documents (12)

• 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
• Attachment 34 - - Rotating Band Cover controlled: request access on SAM.gov
• Attachment 33: Updated MACE Offeror Questions Addressed Dated11 5 controlled: request access on SAM.gov

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Description

Amendment 0009 - The purpose of this Amendment 0009 is to incorporate the updated questions and answers attachment, formally revise the proposal submission portal instructions in the Prototype Project Opportunity Notice (PPON) and to add Attachment 34. Specifically, this amendment: Formally Incorporates Updated Attachments and a new attachment: The following attachments are incorporated into the solicitation and replace all previous versions: Attachment 33 Updated MACE Questions Addressed (Dated 11-5), incorporating Questions #24 through #31 (including key clarifications regarding propellant GFE, NRE milestone formatting, and payload canister compatibility).

Please note Attachment 33 has been uploaded as Controlled attachment. Attachment 34 12961016 Rotating Cover Band has been uploaded as Controlled attachment in response to question #28. PPON Document: PPON MACE EXTENDED November 30 W15QKN-26-R-1C5R Dated 11-5) has been revised to incorporate the updated attachment list in Section 11.

Amends the PPON Submission instructions: The PPON Document: PPON MACE EXTENDED November 30 W15QKN-26-R-1C5R Dated11-5) has been revised in Section 3.1.13 to formally correct the submission portal from SAM.gov to Procurement Integrated Enterprise Environment (PIEE) Proposal Manager Module: Revised Text: 3.1.13 All proposal submissions shall be submitted electronically through the Procurement Integrated Enterprise Environment (PIEE) Proposal Manager Module (piee.eb.mil) .The direct solicitation link may be accessed via the active solicitation notice on SAM.gov.

Instruction to Offerors: All Offerors shall use the timelines, relative durations, and CLIN structures specified within these amended attachments (dated November 5, 2026) as the sole, definitive basis for their proposal submissions, including their Technical, Schedule (IMS), and Cost/Price volumes. End of Narrative 0009Amendment 0008 - The purpose of this Amendment 0008 is to incorporate updated questions and answers, and issue revised solicitation attachments.

Specifically, this amendment: Formally Incorporates Updated Attachments: The following updated attachments are incorporated into the solicitation and replace all previous versions: Attachment 30 Updated MACE Offeror Questions Addressed (Dated 10-29), incorporating Questions #20 through #23.Attachment 31 Updated MACE CLIN Matrix (Dated 10-29), to clarify that the due dates for CLINs 0001A and 0014A represent the initiation of NRE activities, and that payment may be earned across interim milestones per Question #23.Attachment 32 Updated Statement of Work (SOW) (Dated 10-29), removing the administrative reference to Attachment B in SOW Section 8.0 per Question #21.Amends the PPON Text: The Prototype Project Opportunity Notice (PPON Document: PPON MACE EXTENDED November 30 W15QKN-26-R-1C5R Dated 10-29) has been revised in Section 3.3.3 (Volume III, Cost/Price) to add the following language to the third paragraph: to include the interim milestone allocations for Non-Recurring Engineering (NRE) under CLIN 0001A and CLIN 0014A. The attachment list has been updated to incorporate the revised attachments.

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 008 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.

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

• Nov 9, 2026: Solicitation Due Nov 30, 2026, 3:00 PM (UTC-5)
• Oct 30, 2026: Solicitation Due Nov 30, 2026, 3:00 PM (UTC-5)
• Oct 27, 2026: Solicitation Due Nov 30, 2026, 3:00 PM (UTC-5)
• 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)

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 $123.6 billion in contracts in the last 12 months; its biggest suppliers were Lockheed Martin Corporation, The Boeing Company and Raytheon Company. See what Army is buying now.

Ammunition Manufacturing contracts right now

There are 10 open government contract opportunities in this trade (NAICS 332993), 4 posted in the last 7 days; 30% are set aside for small businesses. The agencies buying the most are Department of the Army, Department of the Air Force and Department of the Navy. Most of the work with a stated place is in New Jersey, Arkansas and Florida. A notice in this trade gives a median of 30 days from posting to deadline; this one gives 21 days.

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