Daniel Defense was awarded the Naval Surface Warfare Center – Crane Division contract for the MK12 low profile gas block. As a result Daniel Defense is able to offer this gas block commercially. This gas block is built to Crane specification for USSOCOM. Hardened 416 Stainless Steel Black Oxide Coated Precision CNC Machined Weights 1.9 oz Made in USA INCLUDES: Low profile gas block (2) set screws Gas tube roll pin 0.5 ml. LOCTITE 262 Threadlocker DISCLAIMER The MK12 Gas Block is only compatible with the RIS II (M4A1 & MK18) family of rail systems manufactured by Daniel Defense. It is not compatible with any ot Mfg: Daniel Defense
