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Older gun making video part2

Today’s post is another of the video’s out there dealing with making the weapons of war in the U.S. This video deals with making the BAR and it.s magazine.

What is interesting is the pressing dies and method used to make the BAR magazine. I find the fixture design to answer question that I […]

AR-180B safety spring bending

A while back we showed you the springs that we obtained for the AR-180B safety and bolt hold open. We bought these with out the tabs pre-bent and trimmed.

The next step was to design the tooling necessary to bend the springs for an AR-180B rifle. A couple of pictures of the tooling necessary to […]

AR-180b upper receiver

Here At Gun Lab we actually have a number of projects going on. While we are waiting for our heat treating to come back for the VG1-5 and AR-180b parts we started on the AR-180B upper receiver. This receiver is design to fit on the Nodak-Spud lower as well as the AR-180B lower and the […]

MP-44 trunnions update

We finished the first 6 test sample MP-44 trunnions to the buyer. This is an update report on the product. At the time we made these we had no flats to test them against so certain measurements could not be verified against an actual matching part. This lead to a couple of minor dimensions that […]

Gun Lab update

This is an answer to a friends question about a particular project.

It is good to always keep checking with me. Things can get a little hectic around here. This is the status of the projects here.

1) the MP-44 trunnions test pieces have been completed and sent to the buyer. A […]

OP 7 completed on the MP-44 trunnions

Op 7 has been completed. This is a major mill stone on making the MP-44 trunnions. The rest of the machining will be done on the manual mill. It will be easier on the manual mill then making the number of fixtures and tooling that would be required on the cnc machining center.

This is […]

More on the MP-44 trunnion

Operation 6 has been completed on the MP-44 trunnions. A couple of problems were noted. The first is the difference in length on the front of the trunnions and the second was the fit up of the locking shoulder.

This photo shows the difference in the lengths

You can see the corrected locking shoulder fit […]

MP-44 trunnions finish op 6

We have finished operation 6 on the MP-44 trunnions. The reason that we started with 6 samples was to insure that we would have correct samples when we finished. Two of the trunnions ended up out of spec after we finished this operation. The drawings and cam programing were changed to correct and problems. These […]

Continuing the MP-44 trunnion

We have just completed the first operation 6 on the trunnion. It has also pointed out a few minor differences. When we started this project all we had was an original trunnion in very bad condition and a collection of out of spec drawings with incorrect dimensions.

Later a trunnion in very good […]

MP-44 Trunnions up date

We have now finished the first six test pieces up to the 5th operation. This next week we will complete op’s 6 and 7 and send them for verification for proper fit.

With the first 5 operations completed we will be starting on op6 soon. This is a master cam simulation of the process.

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