M16 Fire Control Group + Constrained Orientations

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A reference model of an M16 Fire Control Group. This CAD should be to-spec, as it was drawn from the M16 technical data package. This CAD can be used to test fitment in software without risking your doggo's lives. The parts in .step and .stl are precision located as if they are in a M16 lower. In the Inventor Source files, you can see this lower by enabling visibility on it. Each FCG part is good to the Colt specs I have. The disco is an A1, the Selector is A1, Sear is A1, Hammer is a combo of A1 and A2 dimensions (my drawing set is missing some of both A1 and A2). Trigger is combo of A2 and M4 specs. Same story as the hammer. In the step and stl folders, I have included the assembly at 5 key stages - fired in full auto, fired in semi auto, cocked in full auto, and cocked in semi auto both before and after trigger reset. The names of the files and renders should make it clear which is which. In the Inventor source files, you will find I've labeled the constraints for the various FCG positions. You can use these to get special snapshots of how the FCG components line up. Just check/uncheck the 'suppress' option when right-clicking the constraint you wish to enable/disable. The lower in the source files should be to spec, but I cannot verify that. The FCG pin holes are right and that's all I checked. besides that it's a standard AR lower with the shelf milled for FA parts. As usual, this is for education only or whatever. Don't do anything too fun/stupid. If you wanted to cast or print FCG parts, this would be a good place to start.

files

File Extension
M16FCG.zip zip

versions

Version: 1.0.0 latest

Initial Release

about

A reference model of an M16 Fire Control Group. This CAD should be to-spec, as it was drawn from the M16 technical data package. This CAD can be used to test fitment in software without risking your doggo's lives. The parts in .step and .stl are precision located as if they are in a M16 lower. In the Inventor Source files, you can see this lower by enabling visibility on it. Each FCG part is good to the Colt specs I have. The disco is an A1, the Selector is A1, Sear is A1, Hammer is a combo of A1 and A2 dimensions (my drawing set is missing some of both A1 and A2). Trigger is combo of A2 and M4 specs. Same story as the hammer. In the step and stl folders, I have included the assembly at 5 key stages - fired in full auto, fired in semi auto, cocked in full auto, and cocked in semi auto both before and after trigger reset. The names of the files and renders should make it clear which is which. In the Inventor source files, you will find I've labeled the constraints for the various FCG positions. You can use these to get special snapshots of how the FCG components line up. Just check/uncheck the 'suppress' option when right-clicking the constraint you wish to enable/disable. The lower in the source files should be to spec, but I cannot verify that. The FCG pin holes are right and that's all I checked. besides that it's a standard AR lower with the shelf milled for FA parts. As usual, this is for education only or whatever. Don't do anything too fun/stupid. If you wanted to cast or print FCG parts, this would be a good place to start.

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Metrics

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54.3K

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734

Project Info

release date

Jan 09, 2020

artifact type

Reference model

library category

Reference Models

fabrication method

Not Printable

release country

United States

language

English

license

No license

version hash

QmS39UW2HJdPAp4XhR5Eo88fiid94j2zGS5D4VpCE1oK18

files

File Extension
M16FCG.zip zip

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.

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