Appendix Reversible Carry (A.R.C.) Inside the Waistband (IWB) holster is engineered for civilian & law enforcement concealed carry who prefer the appendix carry position. This glock pistol is designed to be as comfortable as it is versatile, fitting the needs of both right hand and left hand concealed carriers. With ambidextrous carry capability, two belt clips and adjustable retention detent, this holster is a must have. This model is grey and fits Glock 42.