Quick view Safariland Safariland 578895411 578 GLS Pro-Fit OWB Black Polymer Compatible w/ Glock 43/Springfield XDS Paddle Mount Right Hand $70.00 The model 578 gls pro-fit features the unique gls (grip lock system) an innovative technology that automatically secures the weapon when holstered and releases.The holster body is constructed with safariseven, a lightweight, state-of-the-art nylon blend... Compare Add to Cart