Quick view Midwest Industries Midwest Industries Inc Micro, Midwest Mi-mgb-750 Micro Gas Block .750 $42.78 The micro gas block from midwest industries is designed to fit under most commercially available handguards on the market.Finish: BlackType: Gas BlockModel: MicroDimensions: 1.1"L x .85"W x 1.3"HSize: .750"Material: 4140 Steel Compare Add to Cart