{"product_id":"prometheus-6-20mm-delta-stike-barrel-550mm-for-marui-m16a1-a2-vn-aug","title":"PROMETHEUS 6.20mm Delta Stike Barrel ( 550mm ) for Marui M16A1 \/ A2 \/ VN \/ AUG","description":"- DELTA HOP system uses an injection molded part, with 2 lower ridges aligns BB in the center of the inner barrel, forming a 3-point contact along with hop packing for greater consistency.\u003cbr\u003e- Low friction material used with enlarged hop opening for better compatibility with high firing rate configuration\u003cbr\u003e- 6.20±0.01 mm inner diameter allows greater BB inconsistency,reduces BB bouncing \u003cbr\u003e\u003cbr\u003eNOTE:\u003cbr\u003ePrometheus Straight Chamber Packing and required ( included with first batch )\u003cbr\u003eRecommended to be used with Prometheus Hop Up Tensioner series ( available separately )\u003cbr\u003eMuzzle velocity may drop after installation compared previous inner barrel","brand":"PROMETHEUS","offers":[{"title":"Default Title","offer_id":31436438274129,"sku":"PM-PT-620DSB550","price":335.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0104\/6668\/9105\/products\/pm_pt_620dsb208_3_a87d74e9-9ecc-4511-8e22-404997ca178e.jpg?v=1778289311","url":"https:\/\/www.wgcshop.com\/en-tw\/products\/prometheus-6-20mm-delta-stike-barrel-550mm-for-marui-m16a1-a2-vn-aug","provider":"WGC Shop","version":"1.0","type":"link"}