JE Machine Tech AR-15/M4 Advanced Engraved Trigger Guard USA Flag Black. These Gun Accessories made by JE Machine Tech feature an engraved design that allows you to easily locate your trigger pull. This J&E Machine Tech Advanced Trigger Guard is even engraved on both sides for enhanced strength and functionality. When using the J&E Machine Advanced Trigger Guard your trigger will stand out from the crowd. While some people may choose a more modern guard that is slicker or smoother others may choose a deeper or rougher engraving. Either way you choose this J&E Machine Advanced Trigger Guard w/ Engraving. Specifications for JE Machine Tech AR-15/M4 Advanced Engraved Trigger Guard: Manufacturer: JE Machine Tech Gun Model: M4 AR-15 Color: Black Fabric/Material: Steel Condition: New Package Contents: J&E Machine Tech AR-15/M4 Advanced Engraved Trigger Guard What firearm models does the manufacturer say JE Machine Tech AR-15/M4 Advanced Engraved Trigger Guard is compatible with? The manufacturer suggests that JE Machine Tech AR-15/M4 Advanced Engraved Trigger Guard is compatible with AR-15 M4JE Machine Tech PS-TG2-2: AR-15/M4 Advanced Engraved Trigger Guard USA Flag Black