Next Level Armament SIG MCX Spring Plate
 
The MCX Spring Plate- Billet steel strength for your MCX.
 
* INTENDED FOR GEN1 MCX RIFLES ONLY*
 
Requested by customers to replace the molded plastic mating block from the factory, we created the MCX Spring Plate.  Fully machined from solid block 4140PH steel and Nextride coated, our newly created MCX Spring Plate is easy to install and ensures reliability for your rifle.  
 
NOTE:  Sig changed their OEM block to a pinned block with the Virtus and the Rattler MCX models.  This block is compatible with the previous generations only.