The Micro Gas Blocks from Midwest Industries are 1.125" inches in length and constructed from 4140 steel. The low profile design will fit under most commercially available handguards. The Micro Gas Blocks secure to the barrel with two set screws. The gas blocks come in two diameters currently, .625" and .750". .625" Diameter Gas Block Details: Weight: 1.2 oz Inside Diameter: .625" Length: 1.125" Height: 1.290" Width: .755" Distance between screw holes: .450" .750" Diameter Gas Block Details: Weight: 1.3 oz Inside Diameter: .750" Length: 1.125" Height: Mfg: Midwest Industries, Inc.
