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.
creator
Metrics
Views
31.7K
Downloads
3.6K
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.
