Professor Parabellum DIY AR9 Semi-Automatic 9mm Carbine

about

Early version

A 100% DIY AR9 type 9mm semi-automatic carbine which combines printed parts sleeved over an internal steel tube for maximum durability and ease of construction.

  • The printed upper receiver is sleeved over the inner steel tube and is permanently retained in place using a high strength epoxy such as JB Weld. The stock support collar can be printed first to check the ID is a good snug fit and whether any adjustments need to be made.
  • The bolt assembly consists of a length of thick walled 25mm x 3mm (1" OD) tube combined with a breech insert and rear weight made from 19mm OD (3/4") bar stock. The breech insert can be 'sculpted' to shape using an angle grinder fitted with a 2mm grinding disc followed by filling - no mill is needed.

 

Includes a 30 page PDF construction guide.

files

File Extension
DIY AR9 30mm Tube V1.2.rar rar

versions

Version: V1.2 latest

Changes to assembly file + Construction guide added.

Version: DIY AR9 V1.1

Updates to main assembly file.

Version: 1.0.0

Initial release

about

Early version

A 100% DIY AR9 type 9mm semi-automatic carbine which combines printed parts sleeved over an internal steel tube for maximum durability and ease of construction.

  • The printed upper receiver is sleeved over the inner steel tube and is permanently retained in place using a high strength epoxy such as JB Weld. The stock support collar can be printed first to check the ID is a good snug fit and whether any adjustments need to be made.
  • The bolt assembly consists of a length of thick walled 25mm x 3mm (1" OD) tube combined with a breech insert and rear weight made from 19mm OD (3/4") bar stock. The breech insert can be 'sculpted' to shape using an angle grinder fitted with a 2mm grinding disc followed by filling - no mill is needed.

 

Includes a 30 page PDF construction guide.

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Metrics

Views

34.9K

Downloads

2.6K

Project Info

release date

Mar 18, 2022

artifact type

Printable project

library category

Printable Firearms

fabrication method

Hybrid

language

English

license

No license

Firearm Info

type

Rifle

platform

AR-9

caliber

9x19mm

version hash

QmW6c1xrpsnjqUSmLJgEA9qdbPsGbAwArpPAAY5B64BCqc

files

File Extension
DIY AR9 30mm Tube V1.2.rar rar

versions

Version: V1.2 latest

Changes to assembly file + Construction guide added.

Version: DIY AR9 V1.1

Updates to main assembly file.

Version: 1.0.0

Initial release

The files shown on this site are only available to U.S. Persons, as defined at 22 C.F.R. 120.15. The files are also not available to persons outside the United States or to residents of and persons in the State of New Jersey, with the exception of Federal Firearms Licensees.

Ghost Gunner 3s, GG3s, True Desktop CNC, by Defense Distributed Ghost Gunner 3s, GG3s, True Desktop CNC, by Defense Distributed

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