Glock OEM Glock 44 Threaded Barrel, 22LR, Barrel Is Threaded in M9 x .75 RH, Comes With .500-28 Adapter and Thread Protector, Only Compatible With the G44 50480
Specifications:

Caliber or Gauge
Length	4.02"
Model	G44
Twist
Sights
Bore Type
Finish	Black
Type
Chokes Included
Choke Configuration
Barrel Type	Threaded
Ammo Type
Barrel Features	Threaded