MDT Pack of 4 Buttstock Spacer Kit Black - Adjustable Spacer Kit for Customizing Buttstock Fit and Enhancing Shooting Comfort - 104185-BLK

Store an additional 2-rounds on the side of your rifle with the MDT M-LOK multi-caliber spare round holder. This versatile holder is compatible with a wide range of rounds. The spacer system uses Mil-Spec washers and O-rings to ensure the perfect fit. The holder can be mounted using M-LOK or the accessory holes on the side of the ACC chassis. Its reversible design allows for mounting on either the left or right side of the chassis.