{"product_id":"we-tech-open-bolt-m4-m16-416-xm177-mk18-msk-l85-scar-l-green-gas-drum","title":"WE-Tech Open Bolt M4\/M16\/416\/XM177\/MK18\/MSK\/L85\/SCAR-L Green Gas Drum","description":"\u003cp\u003eThe TAPP Green Gas Drum is a 400-round green gas drum (AW Custom) for your WE-Tech Open Bolt M4\/M16\/416\/XM177\/MK18\/MSK\/L85\/SCAR-L that bolts on with no HPA setup.\u003c\/p\u003e\u003ch3\u003eSpec card\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eGreen Gas Drum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeeds from\u003c\/th\u003e\n\u003ctd\u003eGreen gas (GBB) drum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBB capacity\u003c\/th\u003e\n\u003ctd\u003e400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall profile\u003c\/th\u003e\n\u003ctd\u003eLarge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended mags\u003c\/th\u003e\n\u003ctd\u003eAW Custom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003ctd\u003ePlug and play, no HPA setup needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eColor options\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack:\u003c\/strong\u003e 400-round AW Custom green gas drum in black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed:\u003c\/strong\u003e 400-round AW Custom green gas drum in red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen:\u003c\/strong\u003e 400-round AW Custom green gas drum in green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen\/Black:\u003c\/strong\u003e 400-round AW Custom green gas drum in green\/black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAW Adapter Only:\u003c\/strong\u003e adapter only, for an AW green gas drum you already own\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBrand \/ Platform\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eCompatibility Verification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eTuning \u0026amp; Adjustment Notes\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWE-Tech Open Bolt M4 \/ M16 \/ 416 \/ XM177 \/ MK18 GBBR Series\u003c\/td\u003e\n\u003ctd\u003eDirect Native Fit\u003c\/td\u003e\n\u003ctd\u003eDirect OEM factory standard for WE-Tech Open Bolt STANAG AR-15 platforms. Features an adjustable plunger to calibrate engagement against the internal valve knocker pin. Fine-tune gasket height to form a complete air seal against the loading nozzle rubber without creating drag on the returning bolt carrier group.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWE-Tech Open Bolt SCAR-L \/ MSK \/ L85 \/ PDW GBBR Series\u003c\/td\u003e\n\u003ctd\u003eVerified Fit (Shared STANAG Engine Architecture)\u003c\/td\u003e\n\u003ctd\u003eShares WE Open Bolt STANAG magwell retention profile, trigger box, and nozzle alignment. Fine-tune the plunger set screw depth and gasket height for consistent output and smooth bolt operation across receiver tolerances.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWE-Tech AWSS (Closed Bolt) \u0026amp; Third-Party M4 GBBR Lines\u003c\/td\u003e\n\u003ctd\u003eNOT Compatible\u003c\/td\u003e\n\u003ctd\u003eLegacy WE Closed Bolt (brass cylinder) systems and third-party STANAG GBB platforms (Tokyo Marui MWS, VFC, GHK, KWA) utilize distinct magwell catch dimensions, different valve knocker stroke lengths, and proprietary nozzle seal profiles.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's in the box and how to install\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug and play:\u003c\/strong\u003e no pulling valves or feed lips from stock mags.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e standard body is Nylon PA12. Carbon Fiber is available (3x stiffness, up to 38% higher tensile strength than Nylon 12).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in the USA\u003c\/strong\u003e by TAPP Airsoft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall:\u003c\/strong\u003e insert with the bolt or slide locked back.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 30-Day Warranty + Lifetime Support.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMore options\u003c\/h3\u003e\u003cp\u003eAlso available for: \u003ca href=\"\/products\/vfc-m4-green-gas-drum\"\u003eVFC M4\u003c\/a\u003e, \u003ca href=\"\/products\/kjw-m4-green-gas-drum\"\u003eKJW M4\u003c\/a\u003e, \u003ca href=\"\/products\/kwa-lm4-green-gas-drum\"\u003eKWA\/KSC M4\u003c\/a\u003e, \u003ca href=\"\/products\/ghk-g5-green-gas-drum\"\u003eGHK M4\/MK18\/G5\u003c\/a\u003e, \u003ca href=\"\/products\/wa-woc-ge-ka-matrix-inokatsu-green-gas-drum\"\u003eWA\/WOC\/GE\/KA\/Matrix\/Inokatsu\u003c\/a\u003e, \u003ca href=\"\/products\/src-zaros-sr4-green-gas-drum\"\u003eSRC ZAROS SR4\u003c\/a\u003e, \u003ca href=\"\/products\/g-g-mgcr-green-gas-drum\"\u003eG\u0026amp;G MGCR\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eWant to compare every option? Use the \u003ca href=\"\/products\/we-tech-open-bolt-m4-m16-416-xm177-mk18-msk-l85-scar-l-hpa-adapter-drum\"\u003eWE-Tech Open Bolt M4\/M16\/416\/XM177\/MK18\/MSK\/L85\/SCAR-L Adapter Builder\u003c\/a\u003e.\u003c\/p\u003e","brand":"Tapp Airsoft","offers":[{"title":"Black","offer_id":67748723064932,"sku":"TA-WETM4-GGDRUM-BLACK","price":269.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":67748723097700,"sku":"TA-WETM4-GGDRUM-RED","price":269.0,"currency_code":"USD","in_stock":true},{"title":"Green","offer_id":67748723130468,"sku":"TA-WETM4-GGDRUM-GREEN","price":259.0,"currency_code":"USD","in_stock":true},{"title":"Green\/Black","offer_id":67748723163236,"sku":"TA-WETM4-GGDRUM-GREENBLACK","price":279.0,"currency_code":"USD","in_stock":true},{"title":"AW Adapter Only","offer_id":67748723196004,"sku":"TA-WETM4-GGDRUM-ADA","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/5116\/0932\/files\/WE_M4_gas_drum.webp?v=1786107694","url":"https:\/\/tappairsoft.com\/products\/we-tech-open-bolt-m4-m16-416-xm177-mk18-msk-l85-scar-l-green-gas-drum","provider":"Tapp Airsoft","version":"1.0","type":"link"}