JE Machine Tech AR-15 A2 Front Sight Armorers Block Black. With plenty of support channels pin retention pockets/pass throughs and a magnetic panel to keep those pins and detents together youll wonder how you ever lived without one. Specifications for JE Machine Tech AR-15 A2 Front Sight Armorers Block: Manufacturer: JE Machine Tech Gun Model: AR-15 Fabric/Material: Polymer Color: Black Features of JE Machine Tech AR-15 A2 Front Sight Armorers Block Textured Anti-Slip non-marring surface. Directional design for assembly and disassembly Powerful magnetic plate to keep your pins and detents in one place Ideal for gas block installation and removal Works with most AR platforms Package Contents: JE Machine Tech AR-15 A2 Front Sight Armorers Block What firearm models does the manufacturer say JE Machine Tech AR-15 A2 Front Sight Armorers Block is compatible with? The manufacturer suggests that JE Machine Tech AR-15 A2 Front Sight Armorers Block is compatible with AR-15JE Machine Tech TS-GT56: AR-15 A2 Front Sight Armorers Block Black