The Valken ASL Series M4 Echo Airsoft AEG in Black Tan combines advanced features with durable construction for a superior airsoft experience. This rifle boasts a high-density polymer (HDP) receiver, hand guard, grip, and stock, providing both strength and lightweight maneuverability. Its ambidextrous magazine release and free float HDP MLOK hand guard offer enhanced versatility and customization options. 

Equipped with low-profile flip-up front and rear sights, the M4 Echo ensures quick target acquisition. The metal Mil-Spec buffer tube and stainless steel 6mm oil-less bushings contribute to its rugged reliability. The reinforced 7 metal-tooth piston with a ported piston head and the 6.05mm inner barrel further enhance performance. 

The rifle measures between 650mm and 730mm in length, is adjustable to suit various shooting styles, and weighs 7.5 lbs. With a magazine capacity of 300 rounds and a muzzle velocity of 350-380 FPS using 0.20g BBs, it delivers consistent firepower. The 14mm negative thread direction supports additional attachments, while the Version 2 gearbox and standard long-type motor ensure dependable operation. 

Compatible with a 9.6v 1600mAh small butterfly battery (not included), this AEG supports both semi and full-auto firing modes. The package includes the gun, magazine, and an M-LOK rail panel, making it ready for action right out of the box.

Features

• HDP (High Density Polymer) receiver, hand guard, grip, & stock
• Ambidextrous magazine release
• Free float HDP MLOK hand guard
• Low profile flip-up front and rear sight
• Metal Mil-Spec buffer tube
• Stainless steel 6mm oil-less bushings, reinforced 7 metal-tooth piston w/ ported piston head, 6.05mm inner barrel
• Metal one-piece hopup and spring guide

Manufacturer: Valken

FPS Range: 340-350

Specifications:

Length: 650mm - 730mm, Adjustable
Weight: 7.5lbs
Inner Barrel: 225mm, 6.05mm Diameter
Magazine Capacity: 300rd High Cap
Muzzle Velocity: 350~380 FPS (Measured with 0.20g BBs)
Thread Direction: 14mm Negative
Gearbox: Ver. 2
Motor: Standard Long Type
Fire Modes: Semi/Full-Auto, Safety
Battery: 9.6v 1600mAh Small Butterfly Type Recommended (Battery & Charger Not Included)
Package Includes: Gun, Magazine, M-LOK Rail panel
Hopup: Yes, Adjustable