engineering design | GunLab (KnownHost)

Update on the VG1-5 project

We have been working on the fire control group and once again have made a few changes for more reliable operation and safety. We continue to have issues with the disconnector operating properly. There were issues with the hammer spring improperly contacting the disconnector. An additional problem came about with insufficient spring pressure to hold […]

The MG-09 light machinegun

In answering question concerning the post on the AR-10 belt fed light machine gun Ihave spent some time going through the ” The Armalite AR-10″ book. On page 314 of the book is a picture of a MG-09 light machine gun. The funny thing is that I had just seem that same weapon. It was […]

Machining the MP-44 trunions op 5

With this post I am going over a few of the problems that have occurred during the machining of op5 on the 4140 hardened trunions. We ran into a snag while doing this op. A problem that did not occur on the 1018 steel parts.

A quick video discussing the problem and solution.

The […]

Building an MP-44 semi part 2

This is the second in a series of post of Pete, a friend of gun lab, building his semi-auto MP-44. From our previous post you could see the absolutely dismal condition of the cut up receiver pieces that Pete had to work with.

You can see from these pictures that there was no back […]

Answers to the post of 11-29

The first question that would needed to be answered is what do all these parts have in common. That answer would be up coming projects at Gun Lab.

The Cetme, H&K, 05 , G-41 G-43 and 03 pictures is for the 05 project we are working on. The fire control group is changing to be […]

Interesting AR-18 tool

It is not often that most people think how something was done in the “Old Days” but I do. Lots of times you can not reproduce a part using modern machinery with a great deal of work. The “Old Days” I am talking about is not the 1600,1700, 1800, but the middle 1900’s. I just […]

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 […]

Weekend update and the fun of machining

Nothing really exciting to report. I spent the weekend machining large pieces of metal into smaller pieces. We have shipped the test MP-44 trunnions to Pete and while we are waiting for his report back we are filling our time working on making stamping dies. In this case all the pieces are sized and we […]

Recent Posts

Categories