Sten MkIV: Build

Custom builds, Sten, Sten MkIV, Sub Machine-guns, Weapons, WWII

The first major hurdle for me was that my Sten was missing the massive chunk of aluminium that houses the barrel and hop up unit. I measured up one from another gun and created a 3D model to be printed. I added a section to the front for the flash hider which is a separate piece. Running through this and the other part is some 16mm steel tube for strength.

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The stock is made from pieces of laser cut steel. For the very sharp bends I made cuts with the angle grinder, made the folds and welded them up.

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The locking bar is kept in place with two screws. These ride in slots that stop it from travelling too far back or forwards.

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The pistol grip slotted into place, welded on the bottom which was then ground flat to allow the stock to pivot. The trigger guard is huge, the bend was made with wooden formers and the shape was checked against my paper template.

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A close-up of the locking system. This is a pretty solid system, with only the wobble you would expect from a typical Sten stock.

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Once the stock unit was welded onto the backplate, this really started to take shape. Shown below with the stock stowed.

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And the stock deployed. So far it’s more comfortable than it looks, the next step is to make the wooden grips.

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These are made from some leftover walnut I had sitting around. I printed a paper template, cut them out and drilled the screw holes. Then fine fitting and shaping was done with files and the electric hand sander.

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Then it was time to strip everything and finish her up.

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The grips got a quick soaking with some dark red woodstain, followed by hardwax oil.

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All that’s left now is reassembly, fitting a foresight and doing some internal work on the Sten. I’ve swapped the barrel out already for a shorter one but the trigger needs some TLC.

You can see the complete item here.

If you are interested in this project or have an idea of your own, drop us a line on enquiries.vintageairsoft@gmail.com to discuss. ‘Like’ our Facebook page or follow the blog to get regular updates on projects and interesting videos and articles. 

Don’t forget you can buy our smaller items via Etsy. Our larger items can be found here.

Sten MkIV: Complete

Complete builds, Products, Sten, Sten MkIV, Sub Machine-guns, Weapons, WWII

The completed Sten MkIV. Perhaps not a looker, but definitely one of the most practical SMGs I have built to date. When folded, this easily fits in a backpack making it a much more portable choice than my usual long rifles.

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The large trigger guard makes it ideal for use with gloves in cold conditions.

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The buttstock when folded also makes a handy foregrip. In CQB this is very practical for when poking round corners.

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When  you want a little more shooting precision, just grab the inner tongue and pull it towards the buttstock.

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You can then unfold the stock and lock it into position at the back.

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This is pretty comfortable in this layout, though I am not sure if recoil would be easy to control. I can see how the flat steel would be uncomfortable for prolonged periods of shooting, but no more so than many of the previous models of Sten gun. Frankly compared to the prolific T-stock this would still be a huge improvement so I don’t understand how this was rejected due to being uncomfortable while shooting.

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If you missed it, you can see the build post for this project here.

If you are interested in this project or have an idea of your own, drop us a line on enquiries.vintageairsoft@gmail.com to discuss. ‘Like’ our Facebook page or follow the blog to get regular updates on projects and interesting videos and articles. 

Don’t forget you can buy our smaller items via Etsy. Our larger items can be found here.

Sten suppressor model for Sten MkIIs or MkVs

Add-on kits, Products, Sten, Sub Machine-guns, Suppressed, WWII

A chap on the British WWII airsoft forum asked if anyone had made a suppressor for their Sten, so I obliged to do a post on my prototype silencer!

As with all my Sten kits (released and in development), I wanted to make this a temporary attachment that could be removed when not wanted.

So, how did I make this?

One piece of 40mm OD (Outside Diameter) mild steel pipe makes up the body of the suppressor, nothing fancy about this at all! Inside this prototype there are two square pieces of plywood with holes through the centre.

These slide over the outer barrel of the Sten and fit very snugly indeed. This makes for a very solid silencer as it has all of the strength of the inner barrel to support it.

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The end cap is a piece of ash, cut to rough shape. I heated a spare section of 40mm tube and used it to cauterise the rough cut cap into shape. Now I have the lathe of course I’d just turn it on that! A little epoxy will secure it in place.

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As the weight of the suppressor is taken by the outer barrel, all that is needed to keep it in place is a retaining screw. I used the screw hole that the heat guard uses on the standard ASG Sten.

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A small piece of brass flat bar bridges the gap, obviously this could also be steel.

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Once the canvas heat cover is on, it camouflages this admittedly unsightly joint!

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On this prototype I’ve just stitched the buttonholes roughly, I’ll be putting in some brass eyelets when I have bought a punching kit!

One thing to bear in mind with this conversion, it is aesthetic ONLY. In no way will this quieten your AEG down as most of the sound is created in the motor and doesn’t really travel down the barrel.

The finish is a combination of enamel paint and matte lacquer so that the metal and wood parts match up.

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The production version of this will differ in a few ways:

1. The end cap will be entirely turned on a lathe for shaping

2. The barrel supports will either be plastic or turned round so that they fill the entirety of the barrel

3. The heat shield will have brass eyelets instead of sewn ones

Production versions will be around £50, a post will be forthcoming on completion of the first model! If you fancy a version of this, do drop us a line on: enquiries.vintageairsoft@gmail.com!