PTR91/G3 to AR15 Buffer Tube Adapter

about

This is my remix of EnderBlizz's G3 to AR buffer tube adapter on Thingiverse (Big thanks to them)

The design is the same, though instead of tapping the plastic for the M5 screw, two M5 nuts are inserted during a pause in the print and is fixed in place with additional layers. I also replaced the QD mount with takedown pin holders since I like that feature, but a QD mount version is available too, just look for TP at the end of the file name for the takedown pin version.

Print Directions;

Print with a strong filament like PLA+. Print at .15 height or lower and at 100% infill with supports turned on, make sure there are blockers in the screw holes. You will need to include a pause the layer before it covers the hex hole for the nut, this lets you put the M5 nuts in before continuing the print. Print with the buffer tube up as should something go wrong with the pause, it will only be at ~50 layers. I recommend not using an adhesive to secure the nut, as if the glue gets on the current layer, it may cause the next layer to not adhere well.

 

files

File Extension
G3-M4BufferTubeInsetNutTP.STL STL
G3-M4BufferTubeInsetNutTP.STEP STEP
G3-M4BufferTubeInsetNut.STL STL
G3-M4BufferTubeInsetNut.STEP STEP

versions

Version: 1.0.0 latest

Initial release

about

This is my remix of EnderBlizz's G3 to AR buffer tube adapter on Thingiverse (Big thanks to them)

The design is the same, though instead of tapping the plastic for the M5 screw, two M5 nuts are inserted during a pause in the print and is fixed in place with additional layers. I also replaced the QD mount with takedown pin holders since I like that feature, but a QD mount version is available too, just look for TP at the end of the file name for the takedown pin version.

Print Directions;

Print with a strong filament like PLA+. Print at .15 height or lower and at 100% infill with supports turned on, make sure there are blockers in the screw holes. You will need to include a pause the layer before it covers the hex hole for the nut, this lets you put the M5 nuts in before continuing the print. Print with the buffer tube up as should something go wrong with the pause, it will only be at ~50 layers. I recommend not using an adhesive to secure the nut, as if the glue gets on the current layer, it may cause the next layer to not adhere well.

 

download

Metrics

Views

1.2K

Downloads

333

Project Info

release date

Jan 27, 2023

artifact type

Printable project

library category

Printable Peripherals / Parts

fabrication method

Primarily Printable

fabrication tool

3D Printer

release country

United States

language

English

license

The Unlicense

files

File Extension
G3-M4BufferTubeInsetNutTP.STL STL
G3-M4BufferTubeInsetNutTP.STEP STEP
G3-M4BufferTubeInsetNut.STL STL
G3-M4BufferTubeInsetNut.STEP STEP

versions

Version: 1.0.0 latest

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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