1/2x20 FEMALE TO 1/2x28 MALE
- CZ 452


If you have .22 firearms that are factory threaded 1/2 x 20 male, such as the CZ 455 as well as the CZ 452 rifle or maybe an older Intratec TEC22 pistol, this adapter will allow you to shoot our popular .22 LR suppressors as well as our fake suppressors or any other accessory or adapter that is threaded 1/2 x 28 female. The adapters are knurled on the OD for easy on and off threading. They are hot salt blued steel and are manufactured to exacting tolerances on CNC turning centers in one operation to insure exact alignment of the OD and ID threads.  A thread adapter is also included with the adapter to keep your threads in good shape when no using your suppressor.  Get the most use out of your suppressors with our adapter!



- CZ 455
- CZ 452
- Intratec TEC22 / Scorpion

  • PRODUCT NAME THREAD ADAPTER, 1/2x20 tpi TO 1/2x28 tpi With Thread Protector
  • Manufacturer Tactical Innovations Inc.
  • Application Any 1/2x20 TPI Male Barrel To Convert It To 1/2x28 tpi Male
    Such as CZ452 & Intratec TEC22
  • ID Female Thread 1/2x20 TPI
  • OD Male Thread 1/2x28 TPI
  • Material Steel
  • Finish Hot Salt Blued
  • Weight 1 Ounce
  • Packaging Individually Packaged for Retail Sale

Overall Rating: 5 out of 5 4 reviews

Review This Product

By Jon Of
I just received the thread adapter. It looks great and fits my CZ 452 like it was custom machined for the gun. This is a great product!
By Bill Of
I love my 452 but CZ put the wrong damn thread on the barrel but this adapter is perfect for fit and appearance. Keep up the good work Tactical.
By Tony Of Florida
This is the right adapter for the CZ 452, the Old Tec 22's and the various threaded .22's that Mitchell imported in the 80's and early 90's. Like the AP-80 AP-84 and AP-85. It might also fit the threaded AP-74's but I don't know. The one I received looks great, and has so far proven functional.
By J Of Arizona
I bought this adapter after buying a stock Ruger 10/22 and a muzzle coupling with a 1/2"-20 male end. At first I was a little worried about using this with my Huntertown Guardian suppressor, because I was unsure if it would cause a baffle strike or not. It has proven to be an excellent product and arrived quickly. Thanks Tactical Innovations, I am happy I made this purchase!
PROP 65 WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to