Gas Gun Barrels & Launch Tubes by National K Works

Light Gas Gun Products, Barrel Boring & More Throughout the U.S.

National K Works provides engineered manufacturing of precision smooth bore Gun Barrels and Launch Tubes. Barrel manufacturing also includes multi-barrel, long-gun systems.

Need light gas gun design or compressed gas guns? Call the experts at National K Works. Contact us today!


  • Light Gas Guns
  • Compressed Gas Guns
  • Ordnance Barrels

Size capabilities:

  • Length = 40 feet (12.2m) maximum
  • OD = 24" (0.61m) maximum
  • ID = 0.48-14.00" (12.2-356mm) range

Manufacturing processes include:

Deephole Gundrilling

  • Extremely straight bores
  • Extremely concentric relationship between ID and OD throughout length of the barrel

Deephole Bottle Boring

  • Complex bore profiles at unlimited depths
  • Capable of smooth constantly tapered bore shapes (slightly reduced ID size on muzzle end to compensate for OD size loss of the sabot)


  • Counterboring existing barrels to enlarge ID size and/or correct crooked bores

ID Honing

  • +/-.001" (.025mm) size variation
  • 4 Rms surface finish

ID Burnishing

  • Compressive layer of coldworked ID surface

Large diameter and long length lathe machinery

  • Precise OD sizes on long length barrels
  • Precise perpendicularity of end faces
  • Complex external and internal machined end features

Large diameter and long length mill machinery

  • Complex radial features (ports) and end features


  • Precision straightening long lengths
  • Measuring and reporting ID straightness, OD/ID concentricity, ID surface finish, OD straightness
  • Saw Cutting
  • Welding
  • Full material traceability

For expert light gas gun design and barrel boring in the United States & beyond, contact National K Works today.

Contact NKW for Barrel Boring in the U.S.

National K Works refurbishes barrels with worn bores by installing hydroformed replaceable internal liners:

  • FEA (Finite Element Analysis) to design liner size and hydraulic expansion pressure
  • Liner Manufacturing
  • Liner Installation / Removal / Reinstallation
  • Hydroforming Liner to 60,000 psi (414 MPa)
  • Welding

Why Call National K Works for Your Light Gas Gun, Launch Tubes & Barrel Boring Needs?

NKW also provides its customers with expertise and insight even before manufacturing our tools, during the concept development and design for manufacturing (DFM) phase. From concept, through FEA, in-depth CFD thermal modeling, and application of proprietary knowledge that spans decades and already includes over 500 vacuum flask designs, our team continues to exceed expectations.

For forty years, the company has enjoyed the good fortune of being located in West Houston's energy corridor. It puts us close to customers, and close to communities that are great places to live.

For over 40 years, NKW has designed and manufactured innovative pressure and temperature solutions for customer instruments deployed in hostile environments. NKW's expertise is world renowned for high-pressure/high-temperature (HPHT) vacuum flasks and pressure housings. Many NKW flasks remain in service decades after they were born.

We look forward to helping you with any light gas gun design projects, barrel boring needs, or launch tube services. Contact us today to learn more!

Honing Machine
Long length honing machine
Refurbished barrel with new hydroformed liner
Defining and critical features of a gun barrel. Tapered ID profile is an optional feature.
Hydroformed liner and FEA analysis of liner expansion forces
Bottle Boring
Bottle bored ID shape. Complex profiles and grooves at unlimited depths
Rupture Disk
Hydraulically pressure tested disk to identify exact rupture pressure
Verification of Bore Straightness
Verification of bore straightness using high resolution optics
Machining end features
Machining end features on large capacity 5 axis mill
Machining tight tolerance threads
Machining tight tolerance threads and seal features
2018 OTC Conference New Technology Investment Opportunities
Contact us now to learn more!