{"product_id":"echo1-bts-mod-2-full-metal-m4-aeg","title":"Echo1 BTS Mod 2 Full Metal M4 AEG | Tactical Airsoft Rifle","description":"\n\u003ch2\u003eEcho1 BTS Mod 2 Full Metal M4 AEG Airsoft Rifle – PDW Stock, M-LOK Handguard \u0026amp; MOSFET Trigger (JP-140)\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEcho1 BTS Mod 2 (JP-140)\u003c\/strong\u003e is a compact, full-metal M4-style automatic electric gun (AEG) designed for lawful airsoft use, target practice, and collection. It combines a carbine-length barrel arrangement with a collapsible PDW-style stock, creating a maneuverable platform with the familiar handling and magazine compatibility of an M4-style AEG.\u003c\/p\u003e\n\n\u003cp\u003eThe BTS Mod 2 features a full-metal upper and lower receiver, M-LOK rail system, functioning bolt catch, flip-up sights, and a drop-free M4-style magazine system. Internally, it uses a Version 2 gearbox platform with a quick-change spring system, MOSFET, and microswitch trigger configuration.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEcho1 BTS Mod 2 full-metal M4-style AEG platform\u003c\/li\u003e\n  \u003cli\u003eCompact PDW-style collapsible stock with rear battery storage area\u003c\/li\u003e\n  \u003cli\u003eFull-metal upper and lower receiver construction\u003c\/li\u003e\n  \u003cli\u003eM-LOK handguard \/ rail system for compatible accessories\u003c\/li\u003e\n  \u003cli\u003eM4\/M16-style magazine platform with drop-free magazine release\u003c\/li\u003e\n  \u003cli\u003eIncludes one 120-round M4-style mid-cap magazine\u003c\/li\u003e\n  \u003cli\u003eCompatible with 120-round mid-cap, 300-round high-cap, and other compatible M4-style AEG magazines\u003c\/li\u003e\n  \u003cli\u003eAdjustable hop-up chamber accessed through the ejection-port area\u003c\/li\u003e\n  \u003cli\u003eSafe, semi-automatic, and full-automatic firing modes\u003c\/li\u003e\n  \u003cli\u003eFunctioning bolt catch and flip-up front and rear sights\u003c\/li\u003e\n  \u003cli\u003eVersion 2 gearbox platform with quick-change spring system\u003c\/li\u003e\n  \u003cli\u003eMOSFET and microswitch trigger configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerformance Information\u003c\/h3\u003e\n\u003cp\u003ePublished velocity specifications for the Echo1 BTS Mod 2 can differ by production batch, retailer version, spring configuration, BB weight, hop-up setting, battery output, maintenance condition, and chronograph method. A currently published retailer specification lists approximately \u003cstrong\u003e300–320 FPS with 0.20g BBs\u003c\/strong\u003e. Always chronograph the product using your intended BB weight and confirm compliance with your local field limits before use.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eEcho1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eBTS Mod 2 \/ JP-140\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eAutomatic Electric Gun (AEG)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eCaliber \/ BB Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e6mm airsoft BBs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003ePower Source\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eElectric AEG; rear battery compartment in PDW-style stock\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eBattery and Charger\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eNot included\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eFire Modes\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eSafe \/ Semi-Automatic \/ Full-Automatic\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eMuzzle Velocity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eApprox. 300–320 FPS with 0.20g BBs; actual results vary by production batch and test conditions\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eHop-Up\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eAdjustable\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eMagazine Platform\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eM4\/M16-style AEG magazines\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eIncluded Magazine\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e1 × 120-round M4-style mid-cap magazine\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eCompatible Magazine Options\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eCompatible M4-style 120-round mid-cap, 300-round high-cap, and other AEG magazine options; fitment may vary by brand\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eGearbox\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eVersion 2 gearbox platform with quick-change spring system\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eTrigger Electronics\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eMOSFET and microswitch trigger configuration\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eExternal Construction\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eFull-metal upper and lower receiver\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eStock\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eCollapsible PDW-style stock\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eHandguard\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eM-LOK rail system\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Echo1 BTS Mod 2 Full Metal M4 AEG (JP-140)\u003c\/li\u003e\n  \u003cli\u003e1 × 120-round M4-style mid-cap magazine\u003c\/li\u003e\n  \u003cli\u003e1 × Cleaning rod\u003c\/li\u003e\n  \u003cli\u003e1 × Flip-up front sight\u003c\/li\u003e\n  \u003cli\u003e1 × Flip-up rear sight\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Purchase Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBattery, battery charger, BBs, and BB loader are not included unless specifically stated otherwise.\u003c\/li\u003e\n  \u003cli\u003eUse only suitable 6mm airsoft BBs and a battery compatible with the installed connector and manufacturer guidance.\u003c\/li\u003e\n  \u003cli\u003eActual velocity may vary with BB weight, hop-up setting, battery output, temperature, internal condition, and testing procedure.\u003c\/li\u003e\n  \u003cli\u003eMagazine compatibility can vary among brands. Confirm compatibility before purchasing spare magazines.\u003c\/li\u003e\n  \u003cli\u003eVerify local laws, age restrictions, transportation requirements, and field regulations before purchase or use.\u003c\/li\u003e\n  \u003cli\u003eProduct photos, packaging, markings, orange-tip configuration, and included components may vary by production batch and destination requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety Notice\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFor lawful airsoft use only.\u003c\/li\u003e\n  \u003cli\u003eAlways wear properly rated eye protection and follow all applicable field safety rules.\u003c\/li\u003e\n  \u003cli\u003eNever point the product at people or animals outside a controlled and lawful airsoft environment.\u003c\/li\u003e\n  \u003cli\u003eRemove the magazine, clear the chamber, engage the safety, and store securely when not in use.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Airgrix","offers":[{"title":"Default Title","offer_id":44570536771683,"sku":null,"price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/8544\/2147\/files\/1_e54f1270-0c3e-4a96-907b-20eb47315bc1.png?v=1788934706","url":"https:\/\/airgrix.com\/products\/echo1-bts-mod-2-full-metal-m4-aeg","provider":"Airgrix","version":"1.0","type":"link"}