Hybrid Square Tube SMG

about

An open-bolt, full auto only printable 9mm SMG utilizing an upper receiver made from 30mm x 2mm steel square box section. Compatible with both standard and printable Glock magazines. The trigger and sear block design (combined with a filed down bolt) can be printed in PLA although a sear block cut from 15mm thick aluminum plate should ideally replace the PLA one.

 

The bolt body is made by combining a length of 25mm x 2mm-2.5mm mild steel square tube with a length of 20mm x 2mm square tube 16mm dia steel bar stock.

If 25mm x 2.5mm round tube is used for the bolt body, the cocking handle slot on the receiver should be relocated and positioned along the top corner at a 45 degree angle. A cheap telescoping lug wrench will provide a suitable source for 20mm tube and 16mm bar.

 

Two Handguard files are included, one compatible with barrels over 164mm and a shorter version for use with a 114mm long barrel.

files

File Extension
HybridPrintedSquareTubeSMGV1.1.rar rar

versions

Version: V1.1 latest

Updated assembly.

Version: V1.1

Updated assembly.

Version: 1.0

Initial release

about

An open-bolt, full auto only printable 9mm SMG utilizing an upper receiver made from 30mm x 2mm steel square box section. Compatible with both standard and printable Glock magazines. The trigger and sear block design (combined with a filed down bolt) can be printed in PLA although a sear block cut from 15mm thick aluminum plate should ideally replace the PLA one.

 

The bolt body is made by combining a length of 25mm x 2mm-2.5mm mild steel square tube with a length of 20mm x 2mm square tube 16mm dia steel bar stock.

If 25mm x 2.5mm round tube is used for the bolt body, the cocking handle slot on the receiver should be relocated and positioned along the top corner at a 45 degree angle. A cheap telescoping lug wrench will provide a suitable source for 20mm tube and 16mm bar.

 

Two Handguard files are included, one compatible with barrels over 164mm and a shorter version for use with a 114mm long barrel.

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9.1K

Downloads

977

Project Info

release date

Nov 18, 2022

artifact type

DIY Project

library category

Machinable Projects

fabrication method

Machinable

fabrication tools

3D Printer, Drill Press, Angle Grinder, Welder

language

English

license

No license

Firearm Info

type

Pistol-Caliber Carbine

caliber

9x19mm

version hash

QmPD18d6kNHQ9gyyPkfte3EeJFAgydhgcjK3qqUxbjK1Kr

files

File Extension
HybridPrintedSquareTubeSMGV1.1.rar rar

versions

Version: V1.1 latest

Updated assembly.

Version: V1.1

Updated assembly.

Version: 1.0

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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