ProMag Archangel Tactical Shotgun Stock System for Remington Gauge w/Receiver Mount Shell CarrierPolymer Black. The TYPE identifier will serve as a cross reference between our AA Stock and AA Magazines. TYPE A - Compatible with Precision AA700/AA1500 Stocks TYPE B - Compatible with AAT3 and AA98 Stocks TYPE C - Compatible with Precision Elite Long Action Stocks TYPE D - Compatible with Precision Elite Short Action Stocks Specifications for ProMag Archangel Tactical Stock System for Remington 87020 Gauge: Manufacturer: ProMag Gun Model: Remington Model 870 Gun Type: Shotgun Stock/Brace Material: Polymer Color: Black Condition: New Gun Make: Remington Quantity: 1 Fabric/Material: Polymer Package Contents: ProMag Archangel Tactical Stock System for Remington 87020 Gauge What firearm models does the manufacturer say ProMag Archangel Tactical Stock System for Remington 87020 Gauge is compatible with? The manufacturer suggests that ProMag Archangel Tactical Stock System for Remington 87020 Gauge is compatible with Remington Model 870ProMag AA87020-SC: Archangel Tactical Shotgun Stock System for Remington 87020 Gauge w/Receiver Mount Shell CarrierPolymerBlack