{"product_id":"silverback-tac-41-variable-mass-piston-red","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- Piston cup NBR (70°)\u003c\/p\u003e\n\u003cp\u003e- Piston head CNC AL 6061 T6\u003c\/p\u003e\n\u003cp\u003e- Piston body CNC AL 6061 T6\u003c\/p\u003e\n\u003cp\u003e- CNC steel piston end\u003c\/p\u003e\n\u003cp\u003e- CNC aluminum counterweight (4 pieces)\u003c\/p\u003e\n\u003cp\u003e- CNC steel counterweight (4 pieces)\u003c\/p\u003e\n\u003cp\u003e- PTFE grease\u003c\/p\u003e\n\u003cp\u003e- Tools included\u003c\/p\u003e\n\u003cp\u003eThis special piston allows you to adjust the muzzle energy of your TAC-41 by varying the piston mass from 39 to 135 grams across 15 different configurations.\u003c\/p\u003e\n\u003cp\u003eFollow the tutorial video.\u003c\/p\u003e\n\u003cp\u003eFor optimal performance, use our spreadsheet.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52552436121941,"sku":"SP-SBA-BPS-31","price":84.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/sba-bps-311_d5ee5b14-73c4-420d-8523-29fe6b3dd36d.jpg?v=1771966804","url":"https:\/\/www.skirmshop.es\/en-ca\/products\/silverback-tac-41-variable-mass-piston-red","provider":"Skirmshop Spain","version":"1.0","type":"link"}