Next Level Armament Sig Sauer MCX Spring Plate Rifle Charging Handle Black. 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. Save some hard earned money and upgrade your factory charge handle and spring plate with our MCX Ambi Charge handle/Block kit. 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. Specifications for Next Level Armament Sig Sauer MCX Spring Plate Rifle Charging Handle: Manufacturer: Next Level Armament Condition: New Color: Black Fabric/Material: 4140 Steel Steel Finish: Nextride Weight: 0.01 lb Dimensions: 0.10 X 2.15 X 5.20 in Features of Next Level Armament Sig Sauer MCX Spring Plate Rifle Charging Handle Intended For Gen1 MCX Rifles Only; Package Contents: Next Level Armament Sig Sauer MCX Spring Plate Rifle Charging Handle Next Level Armament Next Level Mcx Spring Plate Black Fits Most Sig Mcx