Aero Precision Upper Parts Kit

Aero Precision AR15 Upper Parts Kit w/ Ejection Port Black. Specifications for Aero Precision AR15 Upper Parts Kit w/ Ejection Port: Manufacturer: Aero Precision Color: Black Finish: Matte Fabric/Material: Steel Caliber: 5.56x45mm NATO Gun Model: AR-15 Weight: 1.5 oz Condition: New Country of Origin: USA Package Contents: Aero Precision AR15 Upper Parts Kit w/ Ejection Port Forward Assist Assembly Forward Assist Spring Forward Assist Roll Pin Ejection Port Cover Door Ejection Port Cover Rod with c-clip Ejection Port Cover Spring What firearm models does the manufacturer say Aero Precision AR15 Upper Parts Kit w/ Ejection Port is compatible with? The manufacturer says that Aero Precision AR15 Upper Parts Kit w/ Ejection Port is compatible with AR-15Aero Precision APRH100270: AR15 Upper Parts Kit w/ Ejection Port Black