155mm Modular Artillery for Combat Effectiveness (MACE)

What the government is buying

Department of the Army (W6QK Acc-Pica) has posted a solicitation notice on SAM.gov for 155mm Modular Artillery for Combat Effectiveness (MACE) under solicitation number W15QKN26R1C5R. Responses are due October 30, 2026, 3:00 PM EDT.

From the notice: Amendment 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 0004*************************************************Amendment 0003 - The purpose of this amendment 0003 is to add Attachment 15 - Updated MACE Offeror Questions Addressed 9-17 **************End of Amendment 0003**********************************************************Amendment 0002 - The purpose of this ...

This page summarizes the public notice only. The complete solicitation, amendments, and attachments are posted on SAM.gov, and offerors should price from the full package.

How Wexmar would machine this

Based on the notice title and classification, Wexmar would plan this work around turning, horizontal milling, or Swiss turning depending on the geometry on the drawing, with the process set so critical features are cut in the fewest setups. Every lot is inspected against the drawing on Brown & Sharpe CMMs.

Equipment on the floor

• Turning: 10 Mazak and Doosan CNC lathes with live tooling
• Horizontal milling: 6 Mazak horizontal machining centers, 3- and 4-axis, with pallet changers
• Swiss: 4 Maier Swiss-type lathes, bar capacity to 32 mm
• Grinding: centerless and surface grinding
• Inspection: 2 Brown & Sharpe coordinate measuring machines

Materials

Material is set by the drawing. Wexmar machines carbon and alloy steels, stainless steels including precipitation-hardening grades, Inconel, Monel, Hastelloy, aluminum, brass, bronze, titanium, and engineering plastics, and buys bar and plate with mill certifications. Where DFARS 252.225-7009 applies, specialty metals are sourced from qualifying melt sources and the certifications travel with the parts.

Finishing and heat treatment

If the drawing calls for plating, anodizing, passivation, or heat treatment, Wexmar manages those steps through qualified outside processors and includes their certifications in the lot paperwork.

Documentation and registration

• First article inspection reports and CMM dimensional reports
• Material certifications traceable to heat lot, and certificates of conformance
• DFARS 252.225-7009 specialty metals sourcing
• ISO 9001-aligned quality system
• SAM.gov active, CAGE 16AD7, small business, woman-owned small business (WOSB)

Working with a prime or distributor

If your company is responding to W15QKN26R1C5R, Wexmar can price the machined content against the drawing revision and quantities in the notice, quote first article and production lots as separate lines when the notice separates them, and ship to you or directly to the government destination.

Send us the files

We can build this. Send us the files. Primes, integrators, and buyers: send the drawing package and quantity and Wexmar will quote it as your subcontractor or direct supplier. Upload a PDF or STEP for an instant estimate, email ron@backwell.com, or call (315) 400-2654.

Related: Build-to-print machining, Government and defense machining, DFARS specialty metals sourcing, Defense and DoD machining.