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Walther P22 Thread Adapter

The United Defense Walther P22 Thread Adapter converts your pistol's factory M8x.75 metric barrel threads to the industry-standard 1/2x28 TPI pattern, opening up compatibility with rimfire suppressors, compensators, and other .22 caliber muzzle devices. Precision-machined from steel with a durable black finish, it installs as a direct replacement for the factory muzzle nut — no gunsmithing required. A knurled thread protector cap is included to safeguard the threads when no device is mounted. Built for P22 owners who want to run a can, a comp, or any other 1/2x28 accessory without hunting down obscure metric hardware.

In stock

SKU
TI-0002
$15.95
  $12.95
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Description

Features

  1. M8x.75 to 1/2x28 Conversion — Converts the Walther P22's proprietary metric M8x.75 barrel threads to the industry-standard 1/2x28 TPI pitch used by virtually all .22 caliber muzzle devices.
  2. Direct Replacement for Factory Barrel Nut — Drops in as a one-to-one replacement for the P22's original muzzle nut, no gunsmithing or permanent modifications required.
  3. Suppressor Ready — Opens up compatibility with the full range of rimfire suppressors, compensators, fake suppressors, and other 1/2x28 muzzle accessories.
  4. Precision-Machined Steel Construction — CNC-machined from solid steel with a corrosion-resistant black finish for durability under repeated mounting and removal.
  5. Knurled Thread Protector Included — Comes with a matching thread protector cap to keep the 1/2x28 threads clean and damage-free when no muzzle device is mounted.
  6. Wrench Flats for Secure Install — Machined flats allow you to torque the adapter down with a standard wrench for a tight, repeatable lockup on the barrel.
  7. Compact, Low-Profile Footprint — Adds minimal length and weight to the muzzle, preserving the P22's balance and handling characteristics.
  8. Fits Walther P22 Variants — Compatible with standard P22 and P22 Target models featuring the factory M8x.75 threaded barrel.

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  1. Perfect Fit for Walther P22

    Verified Buyer

    fits perfectly on the Walther P22 non-tactical that does NOT come with a threaded barrel. Good fitment, but I wish it had a o-ring like the OEM barrel nut.

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    fits perfectly on the Walther P22 non-tactical that does NOT come with the standard 1/2 X 28 pattern-in other words, this works with the P22 that comes with a pencil barrel. Good fitment, but I wish it had a o-ring like the OEM barrel nut. Though it does fit tight, over time it may comes loose. An o-ring would be a good addition to this part. Also

    Fits perfectly, no fitment issues, matches barrel blueing and works with the factor wrench that comes with the P22.

    no o-ring, so may loosen over time.

  2. Matthew

    Verified Buyer

    Finally shooting my P22 suppressed

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    Okay so Ive had my Walther P22 for years and always wanted to run a can on it but the weird metric threads were a pain. Saw this adapter and figured why not. Came in a little plastic bag with the knurled protector, nothing fancy but it got here in like 2 days. Installed it in 30 seconds literally just unscrew the factory nut and thread this on. Took it to the range with my Dead Air Mask and man what a difference. Its so quiet now, my kids were giggling at how it sounds like a pellet gun. The steel feels solid and the knurling is nice and grippy. Only tiny thing is the thread protector is a little loose, I put a o-ring on it and its fine now. Honestly best 15 bucks I spent on this gun. If you have a P22 and a rimfire can just get it.
  3. Brent

    Verified Buyer

    Great fit, works as advertised

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    I bought this so I can shoot with a suppressor on my Walter P22. This item works as advertised.
  4. Dylan Anderson

    Verified Buyer

    Does the job

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    Works exactly like it should. Threaded my suppressor right on no problems.
  5. Matt

    Verified Buyer

    Fits perfectly

    Value

    Overall Rating

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    Quality

    Threaded right onto my barrel with no drama and the flats let me snug it down with a small wrench. Ran about 200 rounds of bulk Federal through it with my suppressor and it stayed put the whole time. Thread protector is a nice touch for when I'm just plinking without the can. Concentric to the bore as far as I can tell, groups didn't open up at all.

    Comes with thread protector

    Wish it came in stainless not just black

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