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Building the semi auto MP-44 part 4

This post deals with just one of the small stampings that goes into making a MP-44. he part being make for this post is the sheet metal reinforcement for the back of the magazine well. This simple part closes the rear of the magazine well, strengthens the rear of the magazine well, addes extra support […]

The next step on the MP-44 trunion

Not that we have finished running the parts on the machining centers it is time to do the final fit up. Using the 1018 trunions that we made a hole was drilled in it to allow alignment with the button pressed into the receiver. Then the blocks were tested to see if the fit up […]

MP-44 Trunion op7 , 8 and 9

With these last three operations we will have completed the work on the cnc machining center.

 

You can see the process of rough machining the bottom of the curve for the trunion. This op also machined the complete magazine well out.

A good side view of the rough machining of the curve.

All the […]

Update on the MP-44 trunions op6

It has been a while for a MP-44 trunion update. The next couple of posts will get us back up to date with the trunion project.

The new op 5 was to cut a slot and rough magazine opening to allow coolant flow and chip removal and still allow us to high speed machine.

Well […]

Building a semi auto MP-44 part 3

In this post we are going to look at how the badly cut up and rusted lower portion of the MP-44 receiver was repaired. You can see in the first photo the condition of the under side of the lower front portion of the receiver.

The first set was to cut out the bad section.

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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 […]

Update on the VG1-5 lower receiver welding

The welding on the lower receiver is now complete. This is the video on that update.

Now for some pictures showing close ups of the work performed.

A side view of the lower receiver

A top view of the receiver

The rear stock supports is first spot welded in place. However, due to […]

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 […]

Working on the MP-44 trunions.

We have started on Pete’s, a friend of gun lab, new 4140 MP-44 trunions. This series of videos and posts is the process we used to make them.

First the video.

Here are the pictures going over the changes and the steps we took.

We needed to change the depth of cut for […]

Hotchkiss feed strip ammo box

I happen to own a Hotchkiss portative light machine gun. Now that I have it working, with the help of my friend John, I find it one of the more fun guns to shoot.

So since last December I have been working on a couple of accessories for it. Well it happen that on […]