{"product_id":"wii-tech-m4-gearbox-steel-bolt-b","title":"M4 (T.Marui) CNC Steel Bolt B","description":"\u003cp\u003eThis steel Bolt B (part no. 133), manufactured through a precision CNC process, and the steel screw set (part no. 134) are designed for the M4 (T.Marui) GBB. This steel Bolt B weighs 23 g more than the original part. Therefore, this 1.79 times greater weight moderately increases recoil impact, but does not significantly reduce cycling speed, and the smooth finish minimizes friction around the buffer tube.\u003c\/p\u003e","brand":"Wii Tech","offers":[{"title":"Default Title","offer_id":52550917980501,"sku":"SP-2195","price":21.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/2195-1-850x715_d391f00c-699b-44a3-889a-fa0881ab24ee.jpg?v=1771971129","url":"https:\/\/www.skirmshop.es\/products\/wii-tech-m4-gearbox-steel-bolt-b","provider":"Skirmshop Spain","version":"1.0","type":"link"}