Echo1 BTS Mod 2 Full Metal M4 AEG Airsoft Rifle – PDW Stock, M-LOK Handguard & MOSFET Trigger (JP-140)

The Echo1 BTS Mod 2 (JP-140) 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.

The 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.

Key Features

• Echo1 BTS Mod 2 full-metal M4-style AEG platform
• Compact PDW-style collapsible stock with rear battery storage area
• Full-metal upper and lower receiver construction
• M-LOK handguard / rail system for compatible accessories
• M4/M16-style magazine platform with drop-free magazine release
• Includes one 120-round M4-style mid-cap magazine
• Compatible with 120-round mid-cap, 300-round high-cap, and other compatible M4-style AEG magazines
• Adjustable hop-up chamber accessed through the ejection-port area
• Safe, semi-automatic, and full-automatic firing modes
• Functioning bolt catch and flip-up front and rear sights
• Version 2 gearbox platform with quick-change spring system
• MOSFET and microswitch trigger configuration

Performance Information

Published 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 300–320 FPS with 0.20g BBs. Always chronograph the product using your intended BB weight and confirm compliance with your local field limits before use.

Product Specifications

Package Includes

• 1 × Echo1 BTS Mod 2 Full Metal M4 AEG (JP-140)
• 1 × 120-round M4-style mid-cap magazine
• 1 × Cleaning rod
• 1 × Flip-up front sight
• 1 × Flip-up rear sight

Important Purchase Notes

• Battery, battery charger, BBs, and BB loader are not included unless specifically stated otherwise.
• Use only suitable 6mm airsoft BBs and a battery compatible with the installed connector and manufacturer guidance.
• Actual velocity may vary with BB weight, hop-up setting, battery output, temperature, internal condition, and testing procedure.
• Magazine compatibility can vary among brands. Confirm compatibility before purchasing spare magazines.
• Verify local laws, age restrictions, transportation requirements, and field regulations before purchase or use.
• Product photos, packaging, markings, orange-tip configuration, and included components may vary by production batch and destination requirements.

Safety Notice

• For lawful airsoft use only.
• Always wear properly rated eye protection and follow all applicable field safety rules.
• Never point the product at people or animals outside a controlled and lawful airsoft environment.
• Remove the magazine, clear the chamber, engage the safety, and store securely when not in use.