It has been a while since I posted my introduction to the MP28 and quite a lot has happened since then!
Most of the parts needed are in now and components progress is going well. There are lots of photos of this project so you can see it progressing nicely.
I had the magwell cut with the last batch of laser cuttings and welded it quite a while ago. As you can see, it fits snugly against the tube used for the outer shell of the gun.
The fore-end of the MP28 is heavily perforated for cooling. This required a very precise set of measurements and I decided it would be easiest to draw out a 2D representation in Qcad. I then printed this out and taped it to the tube in the right place. A centre punch in the dead centre of the circles allowed for accurate drilling.
I drilled small 4mm pilot holes first, then holes to the full size. In the photo above you can see the second drilling in progress.
A bit of work on the stock next. Having marked out the template on the wood, I cut the straight lines with a circular saw. The more complex area around the pistol grip I cut freehand with the router. This did however leave me with a little excess wood still holding the whole unit together.
Drilling through weakened the area considerably. Only a little work with the chisel was needed to free the piece.
Separated. Once the excess was cleaned off I could start shaping in earnest.
First shape was done with the electric plane, a favourite tool of mine. Finer detail and smoothing was achieved with a hand plane. Working in and around the pistol grip, the half-round file did a fine job.
Finally, where the stock is at now. I’ve inhaled most of the wood removed today so it’s time to take a break! A bit more work with the mini sander and this will be as smooth as a baby’s bottom. That will have to wait until the action is fitted though as it is likely to sustain some bumps by then.
It is only when you have all the components together that you realise how big this gun is. When most people think of a sub-machine-gun it is a compact firearm for close quarters. This is nearly 90cm (three feet) long. I guess they had to start somewhere to be fair though!
More to come soon on this! If you have any questions email me (Dom) on firstname.lastname@example.org or leave a note in comments.