{"product_id":"kwa-lm4-hpa-adapter-drum","title":"KWA\/KSC M4 HPA Adapter\/Drum","description":"\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand \/ Platform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility Verification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTuning \u0026amp; Adjustment Notes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eKWA \/ KSC LM4 PTR \u0026amp; System7 AR-15 \/ M4 GBB Rifle Series\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDirect Native Fit\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDirect OEM factory standard for KWA LM4 PTR, LM4D, KSC M4 GBB, and System7 AR-15 rifle platforms. Fine-tune the integrated adjustable plunger height to establish a precise compression seal against the heavy bolt carrier loading nozzle assembly, maximizing gas efficiency and cycling reliability while preventing mechanical drag or valve striker binding during bolt return.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePTS Masada GBB Rifle\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVerified Fit (Shares KWA LM4 Magazine System)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePTS's Masada GBBR runs on the same KWA LM4-pattern gas magazine, so this adapter installs and seals the same way. Fine-tune the adjustable gasket height for consistent output across manufacturing tolerances.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTokyo Marui MWS \/ GHK \/ VFC \/ WE-Tech AR-15 GBB Rifle Lines\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNOT Compatible\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTokyo Marui M4 MWS (Z-System), GHK AK\/AR series, VFC AR-15 platforms, and WE-Tech open-bolt M4 systems feature entirely different upper receiver internal dimensions, magazine catch lock geometry, valve striker heights, and proprietary gas router seal profiles incompatible with KWA System7 LM4 architecture.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:0.9em;margin:6px 0 0;\"\u003e\u003cstrong\u003eAlso available for:\u003c\/strong\u003e \u003ca href=\"\/products\/m4-aeg-adapter-drum\"\u003eM4 AEG\u003c\/a\u003e, \u003ca href=\"\/products\/vfc-m4-hpa-adapter-drum\"\u003eVFC M4\u003c\/a\u003e, \u003ca href=\"\/products\/kjw-m4-hpa-adapter-drum\"\u003eKJW M4\u003c\/a\u003e, \u003ca href=\"\/products\/ghk-g5-hpa-adapter-drum\"\u003eGHK M4\/MK18\/G5\u003c\/a\u003e, \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\u003c\/a\u003e, \u003ca href=\"\/products\/wa-woc-ge-ka-matrix-inokatsu-hpa-adapter-drum\"\u003eWA\/WOC\/GE\/KA\/Matrix\/Inokatsu\u003c\/a\u003e, \u003ca href=\"\/products\/src-zaros-sr4-hpa-adapter-drum\"\u003eSRC ZAROS SR4\u003c\/a\u003e, \u003ca href=\"\/products\/g-g-mgcr-hpa-adapter-drum\"\u003eG\u0026amp;G MGCR\u003c\/a\u003e\u003c\/p\u003e","brand":"Tapp Airsoft","offers":[{"title":"M4","offer_id":49121052950628,"sku":"TAPP-KWAKSCM4-M4","price":205.0,"currency_code":"USD","in_stock":true},{"title":"MP5","offer_id":49121052983396,"sku":"TAPP-KWAKSCM4-MP5","price":205.0,"currency_code":"USD","in_stock":true},{"title":"ARP9","offer_id":49121053016164,"sku":"TAPP-KWAKSCM4-ARP9","price":205.0,"currency_code":"USD","in_stock":true},{"title":"Shotgun Shell","offer_id":49121053048932,"sku":"TAPP-KWAKSCM4-SS","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Ambi Angled M4","offer_id":49121053081700,"sku":"TAPP-KWAKSCM4-AM4","price":275.0,"currency_code":"USD","in_stock":true},{"title":"HPA Drum","offer_id":49121053114468,"sku":"TAPP-KWAKSCM4-HPADRUM","price":165.0,"currency_code":"USD","in_stock":true},{"title":"Green Gas Drum","offer_id":49121053147236,"sku":"TAPP-KWAKSCM4-GGDRUM","price":165.0,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":49121053180004,"sku":"TAPP-KWAKSCM4-OTHER","price":205.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/5116\/0932\/files\/KWA_KSC_M4_m4_comp.jpg?v=1788294307","url":"https:\/\/tappairsoft.sbs\/products\/kwa-lm4-hpa-adapter-drum","provider":"Tapp Airsoft","version":"1.0","type":"link"}