The MK12 ModO and ModH are specialized rifles developed for US Special Operations, featuring 18-inch and 16-inch Douglas barrels respectively. Both utilize a unique Allen Engineering suppressor system and were designed around the high-accuracy MK262 77-grain OTM ammunition. Key components include PRI carbon fiber handguards, ARMS sights, and often Leupold optics, with the ModH variant featuring a shorter barrel and telescopic stock.
This video provides an in-depth historical review of the MK18 CQBR, tracing its evolution from the SOPMOD program to its adoption by Navy boarding crews. It details technical specifications, reliability enhancements like extractor O-rings and the PRI Gas Buster charging handle, and the critical role of ammunition like the MK262 Mod 1 in optimizing performance from its 10.3-inch barrel.
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