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Hammerli Forge H1 1911-22LR 1/2x28 Stainless Thread Adapter with Thread Protector

hammerli | forge H1 | 1911-22 | Walther 1911-22 | Umarex 1911-22 | 1/2x28 adapter | Blued Steel Fluted Thread Protector | thread Adapter | suppressor | 22lrupgrades | Colt | nictaylor | black | silver | stainless steel
 
This thread adapter quickly and easily replaces the factory barrel nut with no modifications to the pistol and allows the user to mount any 1/2x28 TPI threaded accessories such as a suppressor, an AR15 muzzle devices. No special wrench is required. Any 10mm open end wrench found in a standard tool set will work to install and remove this adapter. Constructed of stainless steel with included fluted thread protector.
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MSRP: $34.99
Our Price: $24.99
Savings: $10.00


Shipping: Usually Ships in 1 to 2 Business Days
Part #: 800-HAMR-SS
Qty:

Installation Instructions RESTRICTIONS
 
1. Remove factory muzzle protector and replace with thread adapter. When not attaching a muzzle device to the thread adapter, screw on the thread protector to keep from damaging the threads of the adapter.



Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 9 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 SS thread protector and adapter January 19, 2026
Reviewer: Chris Nissen from Sioux Falls, SD United States  
Seems to be well made. Thread adapter didn't come loose after several hundred rounds. Thread protector did but they all seem to do that no matter how hard you screw them on. Would definitely recommend.

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  0 of 0 people found the following review helpful:
 
5 of 5 Nice fit and finish January 19, 2026
Reviewer: B.H.  
Easy to put on, looks good and allows me to use the gun suppressed.

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  0 of 0 people found the following review helpful:
 
5 of 5 Quality Products at a Fair Price! December 16, 2025
Reviewer: Bigs from Norman, OK United States  
The magazine capacity expanders and thread adapters I bought fit great and work as they should.  Would repeat

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  0 of 0 people found the following review helpful:
 
5 of 5 November 24, 2025
Reviewer: Stephen Trackman from Zephyr Cove, NV United States  


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  0 of 0 people found the following review helpful:
 
5 of 5 August 18, 2025
Reviewer: Gerardo Villegas from El Paso, TX United States  
Fit like a glove. Excellent as always!

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