Yes, the Rival Arms Glock 19 Gen 3/4 Precision Threaded Barrel is a Match-grade precision drop-in barrel with a 1:10 twist, and 6 groove rifling CNC-machined from 416R stainless steel billet.
The Rival Arms Glock 19 Gen 3/4 Precision Threaded Drop-in Barrel will work with a factory Glock 19 slide.
You would want to use the Rival Arms Glock 19 Gen 5 Precision Threaded Drop-in Barrel, which was optimized for the Gen 5 platform, and can be found by using the link below:
https://www.opticsplanet.com/rival-arms-glock-19-gen-5-precision-threaded-drop-in-barrel.html
No. The Rival Arms Glock 19 Gen 3/4 Precision Threaded Drop-in Barrel features 1/2x28 LH threads.
The Rival Arms Glock 19 Gen 3/4 Precision Threaded Drop-in Barrel should work fine with a Killer Inovations Velocity V1 Slide for a Gen3 Glock 19. The OSS RAD9 suppressor should have another space to thread onto the Rival Arms Glock 19 Gen 3/4 Precision Threaded Drop-in Barrel.
Yes. The Rival Arms Glock 19 Gen 3/4 Precision Threaded Drop-in Barrel uses 1/2x28 threads which is what is needed to fit the ZEV Comp. On top of that, the ZEV Comp was designed for the Glock 19 so it will be a perfect combo.
You would want to use the Rival Arms Gen 5 Glock 19 Precision Threaded Drop-in Barrel for the Glock 19x. You can find that barrel using the following link:
https://www.opticsplanet.com/rival-arms-glock-19-gen-5-precision-threaded-drop-in-barrel.html
Yes, this barrel will also work with aftermarket slides that are configured for the Glock 19.
Will this barrel fit a Glock Gen1-2 model 19 as well as the Gen 3-4?
Threaded barrels and protectors use 1/2-28 threads