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AR-180B trunnion design

An interesting question was brought up by Rick at http://ar180s.com/ a while back about making new AR-180B upper receivers. The actual receiver is not much of a problem however the trunnion is. The expense of making a new trunnion would be cost prohibitive so a different solution had to be found. In this case the […]

MP-44 trunnion part 2

The next machining operation has been completed on the trunnion. This is one of the many unexpected problems with reverse engineering a component. The magazine did not fit. An error occurred that was missed. It is a good thing to check after every step which we do.

You can see the differences here and it […]

Reverse Engineering and machining the MP-44 trunnion

Here at Gun Lab we do a fair amount of reverse engineering, most of what we like to make have no drawings. However when there are drawings or solid models available we will use them. With this said I have found that most of what is available on the internet or in books is just […]

Op 2 on the AR-180B selector lever

Saturday I spent most of the day finishing up the second op on the selector lever. Here is a run down of that operation.

Starting with the finished op one part.

A special set of aluminum jaws were machined to hold the selector levers.

With the jaws finished and the parts installed this is […]

Making the 1930 Sauer firing pins

I went to do a little shooting on a few weapons in my collection that I have never fired only to find out that the firing pins were broken. In this case the pistol that I had taken out was a Sauer model 1930 32acp pistol. For some odd reason I happen to have three […]

Sunday answer 4-12-15

Sorry for the late answer to this Saturday what is it.

It is the brreechblock from a Sauer & Sohn model 1930 pistol. This is a copy from NRA firearms assembly 2, A book you should have in your library, showing the components of the pistol. It is part number 7.

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Archive Photo’s 3-12

I shot these pictures while at Woolwick at the Rotunda. It was an absolutely great museum. It has since been closed down and replaced with a typical diorama walk through everything behind glass museum. In its day it was a place where you could study some small arms, but mostly artillery up close. I spent […]

VG1-5 update

It has been a while since we have chatted about the VG1-5 so I thought an update was in order. All the individual parts have been made and the first non-firing copy was made. This last weekend we finished a testing example to try and determine if any problems exist. We looked at everything from […]

Sunday answer 3-1-15

The pictures from Saturday.

This is a bolt carrier for a Farquhar-Hill rifle. This bolt is from a drum type rifle. Here are a few pictures of it.

Rear sight

Gas system

Front of the drum

Top of the drum. Notice no feed lips. That was […]

Making the VG1-5 strengthening plates

In this post we are going to take you through the steps necessary to make the strengthening plates for the side of the VG1-5 receiver. In the first couple of rifles that we made we bent the plates on my finger brake.

This was not a plan for doing over 200 of them. The time […]