{"product_id":"kjw-m4-hpa-drum-adapter","title":"KJW M4 HPA Drum","description":"\u003cp\u003eThe TAPP Drum Adapter puts a 400-2,500+ round drum on your KJW M4 for suppressive fire.\u003c\/p\u003e\u003ch3\u003eSpec card\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eDrum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeeds from\u003c\/th\u003e\n\u003ctd\u003eDrum magazine (pre-installed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBB capacity\u003c\/th\u003e\n\u003ctd\u003e400-2,500+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall profile\u003c\/th\u003e\n\u003ctd\u003eMedium to Large\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended mags\u003c\/th\u003e\n\u003ctd\u003eTokyo Marui or Angel Custom drum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003ctd\u003eSuppressive fire and general skirmishes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eDrum options\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e400rd Mini:\u003c\/strong\u003e 400-round mini drum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1500rd Flash:\u003c\/strong\u003e 1,500-round flash drum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1500rd Electric:\u003c\/strong\u003e 1,500-round electric drum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1500rd Electric Tan:\u003c\/strong\u003e 1,500-round electric drum in tan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2000rd Flash:\u003c\/strong\u003e 2,000-round flash drum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2000rd Electric:\u003c\/strong\u003e 2,000-round electric drum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1200rd Twin:\u003c\/strong\u003e 1,200-round twin drum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter Only – Angel Custom:\u003c\/strong\u003e adapter only, for an Angel Custom drum you already own\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter Only – TM Mini:\u003c\/strong\u003e adapter only, for a Tokyo Marui mini drum you already own\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter Only – TM Twin:\u003c\/strong\u003e adapter only, for a Tokyo Marui twin drum you already own\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter Only – A\u0026amp;K:\u003c\/strong\u003e adapter only, for an A\u0026amp;K drum you already own\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter Only – ICS:\u003c\/strong\u003e adapter only, for an ICS 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\u003eKJW M4 GBB Series (V1 \/ V2 \/ V3 \/ Tanio Koba System)\u003c\/td\u003e\n\u003ctd\u003eDirect Native Fit\u003c\/td\u003e\n\u003ctd\u003eDirect OEM factory standard for Tanio Koba-designed KJW M4 receivers. Features an adjustable plunger to calibrate engagement depth against the internal striker pin, ensuring complete valve depression. Fine-tune gasket height to form an airtight compression seal against the rubber piston face without causing bolt carrier drag.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTokyo Marui MWS \/ VFC \/ WE-Tech \/ WA M4 GBBR Series\u003c\/td\u003e\n\u003ctd\u003eNOT Compatible\u003c\/td\u003e\n\u003ctd\u003eThird-party M4\/AR-15 GBBR platforms utilize distinct valve knocker depths, different gas router seal profiles, and non-matching magazine catch heights incompatible with KJW's Tanio Koba engine architecture.\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. US-spec Foster fitting included, never exceed 150 PSI, use a secondary low-pressure regulator.\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\/m4-aeg-drum-adapter\"\u003eM4 AEG\u003c\/a\u003e, \u003ca href=\"\/products\/vfc-m4-hpa-drum-adapter\"\u003eVFC M4\u003c\/a\u003e, \u003ca href=\"\/products\/kwa-lm4-hpa-drum-adapter\"\u003eKWA\/KSC M4\u003c\/a\u003e, \u003ca href=\"\/products\/ghk-g5-hpa-drum-adapter\"\u003eGHK M4\/MK18\/G5\u003c\/a\u003e, \u003ca href=\"\/products\/we-tech-open-bolt-m4-m16-416-xm177-mk18-msk-l85-scar-l-hpa-drum-adapter\"\u003eWE-Tech Open Bolt M4\/M16\/416\/XM177\/MK18\/MSK\/L85\/SCAR-L\u003c\/a\u003e, \u003ca href=\"\/products\/wa-woc-ge-ka-matrix-inokatsu-hpa-drum-adapter\"\u003eWA\/WOC\/GE\/KA\/Matrix\/Inokatsu\u003c\/a\u003e, \u003ca href=\"\/products\/src-zaros-sr4-hpa-drum-adapter\"\u003eSRC ZAROS SR4\u003c\/a\u003e, \u003ca href=\"\/products\/g-g-mgcr-hpa-drum-adapter\"\u003eG\u0026amp;G MGCR\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eWant to compare every option? Use the \u003ca href=\"\/products\/kjw-m4-hpa-adapter-drum\"\u003eKJW M4 Adapter Builder\u003c\/a\u003e.\u003c\/p\u003e","brand":"Tapp Airsoft","offers":[{"title":"400rd Mini","offer_id":67748737843300,"sku":"TA-KJWM4-HPADRUM-MD","price":360.0,"currency_code":"USD","in_stock":true},{"title":"1500rd Flash","offer_id":67748737876068,"sku":"TA-KJWM4-HPADRUM-FD","price":365.0,"currency_code":"USD","in_stock":true},{"title":"1500rd Electric","offer_id":67748737908836,"sku":"TA-KJWM4-HPADRUM-ED","price":400.0,"currency_code":"USD","in_stock":true},{"title":"1500rd Electric Tan","offer_id":67748737941604,"sku":"TA-KJWM4-HPADRUM-TED","price":400.0,"currency_code":"USD","in_stock":true},{"title":"2000rd Flash","offer_id":67748737974372,"sku":"TA-KJWM4-HPADRUM-BFD","price":371.0,"currency_code":"USD","in_stock":true},{"title":"2000rd Electric","offer_id":67748738007140,"sku":"TA-KJWM4-HPADRUM-BED","price":404.0,"currency_code":"USD","in_stock":true},{"title":"1200rd Twin","offer_id":67748738039908,"sku":"TA-KJWM4-HPADRUM-TD","price":444.0,"currency_code":"USD","in_stock":true},{"title":"Adapter Only – Angel Custom","offer_id":67748738072676,"sku":"TA-KJWM4-HPADRUM-ACA","price":315.0,"currency_code":"USD","in_stock":true},{"title":"Adapter Only – TM Mini","offer_id":67748738105444,"sku":"TA-KJWM4-HPADRUM-MDA","price":315.0,"currency_code":"USD","in_stock":true},{"title":"Adapter Only – TM Twin","offer_id":67748738138212,"sku":"TA-KJWM4-HPADRUM-TDA","price":315.0,"currency_code":"USD","in_stock":true},{"title":"Adapter Only – A\u0026K","offer_id":67748738170980,"sku":"TA-KJWM4-HPADRUM-AKDA","price":315.0,"currency_code":"USD","in_stock":true},{"title":"Adapter Only – ICS","offer_id":67748738203748,"sku":"TA-KJWM4-HPADRUM-ICSD","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/5116\/0932\/files\/KJW_M4_Drum.jpg?v=1785196288","url":"https:\/\/tappairsoft.com\/products\/kjw-m4-hpa-drum-adapter","provider":"Tapp Airsoft","version":"1.0","type":"link"}