Revolutionary Free Floating Design Solid Aircraft Aluminum Construction with State-of-art Manufacturing Technologies Great Enhancement to All Model 4, 15 and 16 Rifles Four Picatinny Rails Each with 20 Slots Easy and Quick Installation Extensively Tested by Field Experts for Most Satisfactory Performance Material: Aluminum Weight: 500g Type: Picatinny No. of Rails: 4 Length: 320mm
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