Silencer adapter for Umarex Walther MP5 22 LR – 1/2 UNF or 1/2 UNEF

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Waltherarms offers .22 LR replicas of the most iconic long guns and assault rifles. Who says .22 LR says suppressor, and that’s why we make this silencer adapter for Umarex Walther MP5 22 LR.

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A silencer adapter for Umarex Walther MP5 22 LR

The Walther brand has long produced .22 LR semi-automatic replicas of famous weapons. We could see HK 416 Walther, M4 Walther, Uzi Walther … and Walther HK MP5. It is of course for this last that we offer the silencer adapter for Umarex Walther MP5 22 LR.

It should also be noted that the origin of these fun guns is not always easy to determine with certainty. This is because the stamps multiply and combine (Walther, Umarex, Hämmerli, GSG…). All are German, but it’s hard to know who’s doing what. That’s why you need to study the muzzle configuration of your weapon to determine if this adapter is suitable for your version. In any case, if the mounting try is inconclusive when you get yours, you have a right of withdrawal.

How does this suppressor adapter look like?

This silencer adapter for Umarex Walther MP5 22 LR sleeves the end of the original internal barrel. Looking into the adapter, you’ll see an M8x0.75 thread, the classic thread used by Walther Arms. Note that this thread is longer than the one encountered at the muzzle of the Walther P22 (for example). It also starts at 9 mm from the rear of the part.

On the outside of the adapter, from the rear to the front, there is first a smooth lip 3 mm high. Then a 13 mm hexagon for a wrench (on a height of 5 mm). Then a diameter knurled to 17 mm (on a height of 9 mm). And finally the accessory thread at the front. You’ll screw your suppressor on it.

So you just have to replace the original muzzle cap of your gun with this adapter and you’re done. It’s up to you to plink discreetly !

Wich thread should I choose for my silencer adapter for Umarex Walther MP5 22 LR ?

We produce this part in two different output threads :

► The 1/2 UNF, as known as 1/2×20 TPI

► The 1/2 UNEF, as known as 1/2×28 TPI

The first (1/2 UNF) is the standard thread for .22 LR weapons in Europe. The second (1/2 UNEF) is the most common thread for .22 caliber weapons in the USA. So choose the one that best suits your region in the drop-down menu to the right of the image.

To cover the output thread when no silencer occupies it, we can also sell you a thread protector 1/2 UNF or 1/2 UNEF.

French CNC manufacturing, shipping worldwide.

Additional information

Weight 22 g
Dimensions 30 × 17 mm


Accessory thread

1/2 UNF (1/2×20 TPI), 1/2 UNEF (1/2×28 TPI)

Barrel thread



Blued steel


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