SilencerCo Threaded Barrels for Glocks are constructed of 416R stainless steel and finished in black nitride. 
 All SilencerCo threaded barrels include a thread protector. 
-  1/2x28 Thread Pitch 
 -  Versions available: 
 Gen1-5 Glock 19 
 Gen1-5 Glock 26 
 Gen3/4 Glock 17 
 Gen3/4 Glock 21 
 Glock 43/43X  
 Looking for a compensator to pair with your threaded barrel? They can be found here. 
Please Note: The Glock 19 and 26 barrels are compatible with Gen 1-5. The G 17, 21, and 43/43X barrels are generation specific.