The ZEV Pro V2 compensator has been developed and optimized for use on the G19, but will fit and work on all threaded barrel Glock models.Specifications: · OFFICIAL ZEV LICENSE · Material: CNC machined 6000 series aluminum · Compact size · Compatibility: barrel external threaded 14 mm CCW · Weight: 30g · Dimensions: 26 x 22 x 33 mm