Silencer adapter 1/2 UNEF to 1/2 UNF

(6 customer reviews)


The silencer adapter 1/2 UNEF to 1/2 UNF turns the US thread of your weapon (1/2×28 TPI) into the European thread (1/2×20 TPI). An accessory for 22 LR pistols or rifles, creating new opportunities.

In stock

SKU: 1228-1220 Category:

Why should I use a silencer adapter 1/2 UNEF to 1/2 UNF?

On this page, we offer the conversion accessory that an European shooter probably needs most often . The silencer adapter 1/2 UNEF to 1/2 UNF is intended to turn a 1/2×28 TPI thread into a 1/2×20 TPI thread. This converts the 22 LR most popular thread in the USA, into the 22 LR most popular thread in Europe. It makes possible to fit a standard European suppressor to an American weapon in a few seconds. No need to acquire a dedicated silencer anymore.

What firearm is this silencer adapter intended for ?

At first, we developed this adapter to meet the demand of French shooters owning a Smith & Wesson M&P 15-22. Of course, big brands often produce their suppressors in both threads (1/2 UNEF and 1/2 UNF). But the entry-level European silencers are too often available only in 1/2 UNF (in France at least). So who wants to mount a European 22 LR silencer like a SAK or a still 3 on its M&P 15-22 will be able to do so with this adapter.

But this adapter can easily fit on other firearms or airguns. Virtually, any 22 LR pistol or rifle with 1/2×28 TPI thread can be turned into 1/2×20 TPI thread. So if you want to equip your Ruger American Rimfire rifle or your Mossberg Plinkster 802 US threaded to use your cheap 22 LR european silencer, you’re in the right place.

However, we do not recommend stacking this silencer adapter on another silencer adapter. If your firearm was supplied with an adapter that already transforms its proprietary thread into 1/2 UNEF thread and you would rather wish a 1/2 UNF, contact us! We will make it our duty to produce you a custom adapter… without breaking the bank.

Why should you choose our silencer adapter 1/2 UNEF to 1/2 UNF ?

This accessory is one of our flagship products, perhaps even our business card. As a result, we take great care to produce an item that reflects our expertise and our seriousness. A real promotional argument for our company. Many of our most loyal customers first came to us looking for a silencer adapter 1/2 UNEF to 1/2 UNF, and still order from us. The best of advertisements is your satisfaction.

Keeping this in mind, we strive to produce perfect concentricity between the male and female threads of this adapter. As a result, if the silencer used is good, the accuracy of the gun will be preserved.. Our adapters are made of XC38 steel (also known as C35) on CNC machines. Then they are blued to offer perfect protection against corrosion. A durable and reliable accessory, a quality investment that you won’t regret.

Additional information

Weight 35 g
Dimensions 30 × 17 mm
Maximum bullet diameter

.275 in (7 mm)

Accessory thread

1/2 UNF (1/2×20 TPI)

Barrel thread

1/2 UNEF (1/2×28 TPI)




Blued steel

Brand - Manufacturer


6 reviews for Silencer adapter 1/2 UNEF to 1/2 UNF

  1. RAYMOND P. (verified owner)

    Threaded adapter handy item to have for the barrel, for use with a different thread on a moderator, flash hider, etc. The one I had got was 1/2unef x 28 to fit 1/2unf ( standard English thread) good piece of kit.

  2. D Andrews (verified owner)


  3. Radovan (verified owner)

    Great quality with reliable customer service.

  4. Giedrius (verified owner)

    Very fine and quick shipping!!!!

  5. Richard (verified owner)

    Precision all around

  6. Randy (verified owner)

    Nice part just wrong size for what I needed.

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