Desert Tech MDRx Side Eject Caliber Conversion Kit w/ Bolt 20in 5.56x45mm NATO/ .223 Remington Barrel 10 Round Magazine Black MDR-CK-B2010-SE. 56x45mm NATO / .223 Wylde Caliber Conversion Kit converts your .223 Wylde rifle or carbine to a 5.56x45mm...
Desert Tech MDRx Side Eject Caliber Conversion Kit w/ Bolt 20in 5.56x45mm NATO/ .223 Remington Barrel 10 Round Magazine Black MDR-CK-B2010-SE. 56x45mm NATO / .223 Wylde Caliber Conversion Kit converts your .223 Wylde rifle or carbine to a 5.56x45mm...