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Designed and manufactured by Lewis Machine & Tool Company, the patent-pending Monolithic Rail Platform, or MRP, is the most radical variation of an integrated rail system ever conceived. This one-piece receiver/free-floating* handguard/rail system is precision machined from a solid aluminum forging for absolute strength and consistency. The MRP completely replaces the upper receiver and provides an unprecedented level of versatility to the operator.
Package Includes:
* One Torque Wrench with driver.
* Operations Manual.
* Two Rail Panels.
* One 10.5" Chrome Lined Barrel.
* Semi-Auto Bolt & bolt Carrier Included.
* Charging Handle Included. | 
