{"product_id":"tac-41-variable-mass-piston-red-piston-cup-nbr-70-black","title":"TAC 41 Variable Mass Piston (Red) + Piston Cup NBR 70 (Black)","description":"\u003cp\u003eTAC-41 Variable Mass Piston\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e– NBR piston cup (70° )\u003c\/p\u003e\n\u003cp\u003e– CNC AL 6061 T6 piston head\u003c\/p\u003e\n\u003cp\u003e– CNC AL 6061 T6 piston body\u003c\/p\u003e\n\u003cp\u003e– CNC steel piston end\u003c\/p\u003e\n\u003cp\u003e– CNC aluminium flyweight (4 pieces)\u003c\/p\u003e\n\u003cp\u003e– CNC steel flyweight (4 pieces)\u003c\/p\u003e\n\u003cp\u003e– PTFE grease\u003c\/p\u003e\n\u003cp\u003e– Tools\u003c\/p\u003e\n\u003cp\u003eThis special piston will allow you to tweak the muzzle energy of your TAC-41 by adjusting the piston mass from 39 to 135 grams with 15 different configurations.\u003c\/p\u003e\n\u003cp\u003ePlease follow the \u003ca href=\"https:\/\/www.youtube.com\/redirect?event=video_description\u0026amp;redir_token=QUFFLUhqbnBQQkJVbmYzTlQ5a29uNzhHUEVndDkzamxpUXxBQ3Jtc0trTmxaaGlPVl8zalh5R3NNNFNBc3Awd2pONXhEUVFHa2pjYnY1ZHk4VzFrTzJvYlA4cDFpcXAxR0E3ZXNRMlp2VU9CbjFjT2JpVUxYQlA0NnloY1pJTWIwVE52b3RwWndYb3lHVnNheUZLRlVqRHE1TQ\u0026amp;q=https%3A%2F%2Fwww.silverback-airsoft.com%2Fxls%2Fsilverback_variable_mass_piston_T41.xlsx\"\u003etutorial video\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eFor better performances, use our \u003ca href=\"https:\/\/www.silverback-airsoft.com\/hrf_faq\/variable-mass-piston-spreadsheet-tac-41\/\"\u003espreadsheet\u003c\/a\u003e.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":41420434276486,"sku":"US-SBA-BPS-31","price":60.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/7596\/9670\/files\/sba-bps-312_1aa3ebf8-b5b5-461d-8597-7f4422781f00.jpg?v=1751306837","url":"https:\/\/skirmshopusa.com\/products\/tac-41-variable-mass-piston-red-piston-cup-nbr-70-black","provider":"Skirmshop USA","version":"1.0","type":"link"}