{"product_id":"silverback-srs-variable-mass-piston-red","title":"Silverback SRS Variable Mass Piston (Red)","description":"\u003cp\u003e\u003cstrong\u003eSilverback SRS Variable Mass Piston (Red)\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"f12\"\u003eAllows the user to finely tune the the FPS of the rifle by adding mass to the piston which through a travel force, forces air out behind the BB.  \u003cbr\u003e– NBR piston cup (70 Deg)\u003cbr\u003e – CNC AL 6061 T6 piston head\u003cbr\u003e – CNC AL 6061 T6 piston body\u003cbr\u003e – CNC steel piston end\u003cbr\u003e – CNC aluminium flyweight (4 pieces)\u003cbr\u003e – CNC steel flyweight (4 pieces)\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"f12\"\u003eSilverback Desert Tech SRS Sniper Rifles  \u003c\/span\u003e(For Pull Bolt Only)\u003cbr\u003e\u003cbr\u003eThis special piston will allow you to tweak the muzzle energy of your SRS by adjusting the piston mass from 40 to 137 grams with 15 different configurations.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":42257158668516,"sku":"SBA-BPS-18","price":44.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/1325\/2580\/products\/sba-bps-18-1-scaled_316e6ae4-b9b0-4ff5-a36e-0a2fd10b6771.jpg?v=1640524485","url":"https:\/\/www.ehobbyasia.com\/ko\/products\/silverback-srs-variable-mass-piston-red","provider":"eHobbyAsia","version":"1.0","type":"link"}