{"title":"NPAS","description":"\u003cp\u003eAdjustable nozzles and NPAS to make it easier to change the fps of your shots on field instead of only in the workshop.\u003c\/p\u003e","products":[{"product_id":"vmp-2-npas","title":"VMP-2 NPAS","description":"\u003cp data-rte-preserve-empty=\"true\"\u003e\u003cstrong\u003eCreator: \u003c\/strong\u003eAmethyst\u003cstrong\u003e \u003c\/strong\u003eAlice\u003cbr\u003e\u003cstrong\u003eMaterial: \u003c\/strong\u003eSiraya Tech Engineering Resin\u003cbr\u003e\u003cstrong\u003eProfit Distribution: \u003c\/strong\u003e60% Alice, 40% Sabre Airsoft\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eMaterial: \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eSiraya Tech Blu Nylon\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eColour: \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eDark blue\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eManufactured by:\u003c\/strong\u003e Amethyst Artificery Limited\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003eThis is a NPAS design for the VMP-2, it replaces the rocket valve in your nozzle and allows for the power output of your gun to be reduced using only a simple tool.\u003cbr\u003e\u003cbr\u003eThis is 3D printed in a Nylon-like resin from Siraya Tech, it includes the NPAS valve and an adjusting tool. The tool allows you to adjust the power output of your nozzle without disassembling the BCG or nozzle, but can only be used on a nozzle with the brass flow restricter removed, which is easily knocked out by pushing from the front.\u003c\/p\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003eAs these parts are small they can easily be broken by over enthusiastic use of the tool, so please be gentle when fitting and adjusting them. Once set the NPAS should stay at it’s position, but if through use you find it too loose a small amount of a mild thread lock can help it maintain position.\u003c\/p\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=wAZZ8hXj7_k\" target=\"_blank\"\u003eYouTube Video\u003c\/a\u003e of Alice demonstrating how to fit the NPAS.\u003c\/p\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003eUpdates\u003c\/p\u003e\n\u003cul data-rte-list=\"true\"\u003e\n\u003cli\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003e21\/5\/2025 - Updated to v2 - New tougher design which in testing gives parity with the original valve when fully closed, with reduction as you open it. If the screw comes loose from the base add a drop of threadlock and retighten.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003e1\/7\/2025 - Updated to v3 - End of Beta test. Improved shorter, and strengthened adjustment tool that makes it easier to adjust the NPAS without removing the BCG from the upper received. Better grip for fingers, notches for twisting with a tool, and a 4mm hex key hole.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Amethyst Artificiery Store","offers":[{"title":"Default Title","offer_id":56449900970366,"sku":"NPAS-VMP2","price":10.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/8041\/1774\/files\/original_425049d9-2022-4d3a-894c-afbe16590a11_IMG_20251023_211032140_HDR.jpg?v=1762177539"},{"product_id":"vmp-1-npas","title":"VMP-1 NPAS","description":"\u003cp data-rte-preserve-empty=\"true\"\u003e\u003cstrong\u003eDesigned By: \u003c\/strong\u003eAlice \u003cspan\u003eAmethyst\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMaterial: \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eSiraya Tech Blu Nylon\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eColour: \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eDark blue\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eManufactured by:\u003c\/strong\u003e Amethyst Artificery Limited\u003c\/p\u003e\n\u003cp\u003ePrototype NPAs for the Vorsk VMP-1\u003c\/p\u003e\n\u003cp\u003eYou need to knock any brass restrictor out of your nozzle in order to access the NPAS with the tool after fitting. Can be used to adjust and lower the power output of your VMP-1\u003c\/p\u003e\n\u003cp\u003eWhen fitted you can adjust the NPAS in situ, insert the tool through the circular opening of the nozzle until it engages with the tip of the NPAS and press it gently back against it's end stop. Insert the supplied 1.3mm hex key through the tool and into the NPAS until it engages with the grub screw inside. Holding the outer tool still you can twist the hex key so that the rear of the NPAS rotates and changes the length of the NPAS.  The longer the NPAS the faster the valve closes, therefore the lower the output energy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRevision History\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOct 2025 - First prototype version\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Amethyst Artificiery Store","offers":[{"title":"Default Title","offer_id":56451358720382,"sku":null,"price":6.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/8041\/1774\/files\/IMG_20251023_224946920_HDR.jpg?v=1761256629"},{"product_id":"mws-npas","title":"MWS NPAS","description":"\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e \u003ca href=\"https:\/\/waldodynamics.com\/products\/crimson-npas-for-mws-tokyo-marui-double-eagle-t8\"\u003eWaldo Dynamics\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003eNPAS System:\u003c\/strong\u003e MWS\u003c\/p\u003e\n\u003cp\u003eAn NPAS allows you to tune your GBBR to your desired FPS\/Joule output easily and seamlessly on the field using a simple 1.5mm hex key (found in most hex key toolsets). Once installed (which is demonstrated here on our own very clear video), simply remove your bolt from your GBBR, adjust through the front of the nozzle with a hex key (Clockwise for less energy output, counter-clockwise for more), reassemble and test your results. \u003c\/p\u003e\n\u003cp\u003eThis is perfect for players looking to be under limits no matter the time of year, BB weight, or with gas\/pressure used. It really is a \"must-have\" component. \u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Crimson NPAS is compatible with the vast majority of MWS Nozzles, these include;\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTokyo Marui\u003c\/li\u003e\n\u003cli\u003eUnicorn\u003c\/li\u003e\n\u003cli\u003eDynamic Precision\u003c\/li\u003e\n\u003cli\u003eDouble Eagle\u003c\/li\u003e\n\u003cli\u003eSalvo Precision\u003c\/li\u003e\n\u003cli\u003eGunsmodify\u003c\/li\u003e\n\u003cli\u003eT8\u003c\/li\u003e\n\u003cli\u003eProwin\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe material used is a stronger Nylon Polymer in the iconic Crimson red, making it extremely easy to identify on your tech bench as well as when it is installed. You will no lose track of who's MWS NPAS is who's (not that you will need any others after this).\u003cem\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eCrimson, it's red\u003c\/em\u003e\u003c\/p\u003e","brand":"Amethyst Artificiery Store","offers":[{"title":"Default Title","offer_id":56620967952766,"sku":null,"price":9.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/8041\/1774\/files\/IMG_20251125_113051605.jpg?v=1764076406"},{"product_id":"ghm9-npas","title":"GHM9  NPAS","description":"\u003cp\u003e\u003cstrong\u003ePROTOTYPE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNPAS design for the Lambda Defense GHM-9 Gen 2 (the non-glock one).  This replaces the stock rocket valve and allows you to adjust \u003cstrong\u003edown\u003c\/strong\u003e the fps using just a hex key. Reports are that this also works on the Gen 1 glock \/ GHM9-G models, although I have not personally tested it.\u003c\/p\u003e\n\u003cp\u003eVersion 1 - sold at a discount as it is still a prototype\u003c\/p\u003e\n\u003cp\u003eNotes: When installing, ensure that the opening faces the gas inlet, and the notch runs along the vane on the inside of the nozzle\u003c\/p\u003e","brand":"Amethyst Artificiery Store","offers":[{"title":"Default Title","offer_id":56904817934718,"sku":"NPAS-GHM9-01","price":6.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/8041\/1774\/files\/IMG_20260206_181645373.jpg?v=1770572743"},{"product_id":"vmp-2-adjustable-nozzle","title":"VMP-2 Adjustable Nozzle","description":"\u003cp\u003e\u003cstrong\u003eNEW Product Beta Test\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an adjustable nozzle for the VMP-2 series, it functions as an NPAS that allows you to alter the fps of your replica in order to compensate for the temperature effects on green gas and keep your shots under the power limit for your site.\u003c\/p\u003e\n\u003cp\u003eThis requires the springs, pin, and rocket valve from an existing nozzle, transfer those across and you can then use a 1.5mm hex key to adjust the flow rate without needing to disassemble your bolt and nozzle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis is a Beta TEST, we would love your feed back, if you do have a failure please send photos and we will attempt to rectify them.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Amethyst Artificiery Store","offers":[{"title":"Default Title","offer_id":57498652180862,"sku":"NNPAS-VMP2","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/8041\/1774\/files\/IMG_20260602_102458298_HDR.jpg?v=1780397266"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/8041\/1774\/collections\/original_425049d9-2022-4d3a-894c-afbe16590a11_IMG_20251023_211032140_HDR.jpg?v=1783776419","url":"https:\/\/amethystartificery.com\/collections\/npas.oembed","provider":"Amethyst Artificiery Store","version":"1.0","type":"link"}