# Luling solid rocket motor plant by X-Bow Systems

Canonical page: https://technooptimist.io/manufacturing/luling-srm-plant
Frontier: [Manufacturing](https://technooptimist.io/manufacturing.md) · Field: Munitions & drone production · Company: [X-Bow Systems](https://technooptimist.io/companies/x-bow-systems.md)
Stage: Pilot (3 of 5: Research → Proto → Pilot → Deploy → Scaling)
Updated: last update 2026-10-07, facts checked 2026-10-11
Goal: Add a new, fast-growing US source of solid rocket motors, the part that limits how many missiles the US can build, by making propellant with automated machines in a new Texas plant.
Status: Certified for full production in May 2026; a Navy-funded line for 500 motors a year is being tooled.
Next milestone: Navy booster development phase (12 months), target 2027

## Milestones

| Status | Milestone | Date | Slip |
| --- | --- | --- | --- |
| Done | Series B closes at over $105M | May 2025 |   |
| Done | $13.9M Army GMLRS motor prototype award | Aug 2025 |   |
| Done | Production AMSP system installed at Luling | Nov 2025 |   |
| Done | Certified for full production (AFRL RE-ARM) | 27 May 2026 |   |
| Done | First major production contract done: 2,100+ motors | 2026 |   |
| Done | Navy booster award, up to $69.7M | 7 Oct 2026 |   |
| Current | Navy booster development phase (12 months) | 2027 |   |
| Planned | Propellant output reaches 3M lb a year | 2027 |   |
| Planned | Navy weapon initial capability | 2031 |   |

## Upcoming events

- **2027**: Navy booster development phase (12 months)
- **2027**: Propellant output reaches 3M lb a year
- **2031**: Navy weapon initial capability

## Most important updates

- **7 Oct 2026**: Navy awards X-Bow up to $69.7M for a missile booster and a 500-motor-a-year line. X-Bow will develop and qualify a solid rocket booster for an unnamed next-generation Navy weapon meant to replace single-purpose interceptors. ([our story](https://technooptimist.io/stories/navy-awards-x-bow-up-to-69-7m-for-a-missile-booster-and-a-500-motor-a-d18b17d5.md) · [original source](https://interestingengineering.com/military/us-navy-modular-rocket-booster-x-bow))
- **27 May 2026**: X-Bow's Texas plant certified for full production under the Air Force RE-ARM program. X-Bow received certification for full production at its Texas facility through the Air Force Research Laboratory's RE-ARM program. ([our story](https://technooptimist.io/stories/x-bow-s-texas-plant-certified-for-full-production-under-the-air-force-a96da9c8.md) · [original source](https://interestingengineering.com/military/us-x-bow-missile-motor-maker-production))
- **Nov 2025**: X-Bow installs its production propellant system at Luling, Texas, aiming for 1M lb a year. X-Bow finished installing its production AMSP system at Luling and began inert trials before making live propellant for existing contracts. ([our story](https://technooptimist.io/stories/x-bow-installs-its-production-propellant-system-at-luling-texas-aiming-bac7bb96.md) · [original source](https://www.d2pmagazine.com/?p=25273))
- **19 Aug 2025**: US Army and X-Bow announce $13.9M joint investment in a new GMLRS rocket motor. The Army and X-Bow will split the cost of designing, prototyping and testing a solid rocket motor for the standard-range GMLRS guided rocket, made with X-Bow's machine-made propellant. ([our story](https://technooptimist.io/stories/us-army-and-x-bow-announce-13-9m-joint-investment-in-a-new-gmlrs-rocket-c4578d08.md) · [original source](https://www.army-technology.com/news/us-army-x-bow-gmlrs-rocket/))
- **13 May 2025**: X-Bow Systems closes Series B at over $105M, with Lockheed Martin leading the strategic part. X-Bow Systems closed its Series B at over $105 million. ([our story](https://technooptimist.io/stories/x-bow-systems-closes-series-b-at-over-105m-with-lockheed-martin-leading-d161b896.md) · [original source](https://pulse2.com/x-bow-systems-over-105-million-series-b-raised-for-defense-technologies))

## Current obstacles

- **Ramping from 1M to 3M lb a year**: Certification is done; the open question is whether output triples on the 12–24 month plan set in Nov 2025.
- **Long qualification before volume**: The Navy booster needs a 12-month development phase and a qualification option before full-rate orders.

## Physics limits

- **Propellant is fuel and oxidiser in one solid**: Solid propellant can ignite while it is mixed and cast, so plants need remote operation, spread-out buildings and slow safety steps; capacity grows with buildings and land, not just faster machines.
- **A flawless grain, every time**: A crack or void in the propellant suddenly adds burning surface, pressure spikes and the case can burst, so every motor must be inspected and every new design qualified before it flies.

## How it works

### Machine-made grain: Additive propellant

The patented AMSP process builds the solid propellant grain, the part that burns, by machine instead of large hand-run batches.

### Two kinds of plant: Fixed campus and container line

A large fixed plant in Luling and a Rocket Factory in a Box in container modules; both were certified for production in May 2026.

### Counted in pounds: Capacity is propellant mass

3M lb a year would fill about 3,000–3,800 Standard Missile motors or 30,000–50,000 small tactical motors (company figures).

### Modular motors: One architecture, many missiles

Common motor building blocks are adapted to each missile, so one line can serve several programs.

## Spec sheet

| Spec | Luling solid rocket motor plant | Provenance |
| --- | --- | --- |
| Initial propellant output | 1M lb a year | reported |
| Target propellant output | 3M lb a year | reported |
| 3M lb equals (company) | 3,000–3,800 Standard Missile motors/yr | reported |
| Navy booster line rate | Up to 500 motors a year | reported |
| First production contract | 2,100+ motors delivered | reported |
| Private capital in plant | About $40M | reported |
| Navy booster award | $69.7M ($50.4M dev + $19.3M option) | reported |

Provenance: reported = stated by the company; estimated = our estimate; sample = a sample figure.

## About X-Bow Systems

X-Bow Systems makes solid rocket motors for missiles and test rockets. Its patented process builds the propellant by machine (additive manufacturing), and its Texas plant is meant to add a new US source of motors, the part that limits missile output.

- Luling, Texas plant certified for full production in May 2026 under the Air Force RE-ARM program.
- Navy deal (Oct 2026, up to $69.7M) funds tooling for a line of up to 500 motors a year at Luling.
- Series B closed at over $105M in May 2025; Lockheed Martin led the strategic part.

- Founded: 2016
- Headquarters: US
- Status: private
- Raised: $105M
- Last round: Series B (final close) $105M, May 2025, led by Razor's Edge Ventures, Lockheed Martin
- Website: https://xbowsystems.com
- People: Jason Hundley (Founder and CEO)
- Partners, customers, investors: US Navy (customer); US Army (partner); Lockheed Martin (investor); Kord Technologies (KBR) (partner)

Company page: https://technooptimist.io/companies/x-bow-systems.md

## Related programs

Everything in Manufacturing: https://technooptimist.io/manufacturing.md

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