Silverback Airsoft SRS A1 HDG-01 Only / HTI Long Rail 1 piece Black. Specifications for Silverback Airsoft SRS A1 / HTI Additional Long Rail: Manufacturer: Silverback Airsoft Gun Model: Silverback SRS Silverback HTI Gun Make: Silverback Fabric/Material: Fiber Reinforced Nylon Gun Type: Airgun Quantity: 1 Color: Black Features of Silverback Airsoft SRS A1 / HTI Additional Long Rail Fiber reinforced nylon rails 10 screws M4X10-DIN7991 are included Desert Tech licensed product Not compatible with SRS-A1 Covert Handguard (SBA-HDG-02) Package Contents: Silverback Airsoft SRS A1 / HTI Additional Long Rail What firearm models does the manufacturer say Silverback Airsoft SRS A1 / HTI Additional Long Rail is compatible with? The manufacturer suggests that Silverback Airsoft SRS A1 / HTI Additional Long Rail is compatible with Silverback SRS Silverback HTISilverback Airsoft SBA-RAL-05: SRS A1 HDG-01 Only / HTI Long Rail 1 piece Black