{"product_id":"retro-arms-cnc-rotary-hop-unit","title":"Retro Arms Airsoft CNC Rotary Hop Unit M4 M16","description":"\u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003e\u003cbr\u003eRetro Arms CNC Hop Up Chamber M4 \/ M16 \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cfont style=\"font-size: 18px;\"\u003e \u003c\/font\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eOur good old Retro Arms hop Up chamber for M4 \/ M16’s with a recently fine tuned main shaft and feeding shaft. \u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cfont style=\"font-size: 18px;\"\u003e \u003c\/font\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eThe chamber is machined on a precise CNC machine from aviation-grade aluminium\u003cspan\u003e  \u003c\/span\u003eEN AW 7075, is anodized and even though the chamber doesn't have any extra adjustable features such as feeding regulator etc, it is already R-hop ready and it's a powerful upgrade part machined with tight tolerances.\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cfont style=\"font-size: 18px;\"\u003e \u003c\/font\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eOn a feeding shaft, you can find an o-ring, which prevents unfired BBs from falling out when reloading.\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cfont style=\"font-size: 18px;\"\u003e \u003c\/font\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eAnother feature is a collet nut instead of a centering ring in the front of the chamber. When the collet nut is tightened, it holds the inner barrel and the chamber centered and tightly together and thus mitigating any movement of the barrel. Just make sure that you do not let the barrel rotate in the chamber when you tighten the nut. Another advantage of this nut is that it can hold barrels with different outer diameters (typically 8.4 - 8.5 mm).\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cfont style=\"font-size: 18px;\"\u003e \u003c\/font\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eRecent fine tuning of the main shaft and feeding shaft ensures compatibility with most HopUp rubbers and improves feeding reliability and consistency of the chamber.\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cfont style=\"font-size: 18px;\"\u003e \u003c\/font\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eHop Up Chamber BASIC is designed for players, who want a 100% reliable and precise Hop Up chamber that just works without necessity to tune anything.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eSame Day Dispatch on All Orders Placed Before 3pm Monday – Friday\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px; color: red;\"\u003eFor Airsoft Use Only, cannot be Adapted or Modified for any other purpose\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cfont color=\"#009900\"\u003eBullseye Country Sport\u003c\/font\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cfont color=\"#009900\"\u003eYour No 1 Outdoor Hobby Store\u003c\/font\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cfont color=\"#009900\"\u003eFootwear, Field Sports, Camping Equipment and more\u003c\/font\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cfont color=\"#009900\"\u003eAlways on Target\u003c\/font\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e","brand":"Retro Arms","offers":[{"title":"Default Title","offer_id":53337590071638,"sku":"RA6388","price":32.89,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/0921\/4294\/files\/n1exdjypqnb.jpg?v=1777466216","url":"https:\/\/bullseyecountrysport.co.uk\/products\/retro-arms-cnc-rotary-hop-unit","provider":"Bullseye Country Sport","version":"1.0","type":"link"}