Valken ASL+ Series Sierra Polymer PDW AEG Airsoft Rifle

SKU: 103777

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Looking for an airsoft rifle with more features? The Valken ASL+ Sierra electric gun adds several new features to our normal ASL airsoft electric gun. We have upgraded the internal components to provide less stress on the gearbox, including a 22:1 ration gear set, piston with full metal teeth, and radial cuts in the gearbox shell. The ASL+ Sierra AEG 6mm rifle also comes with a rotary style hop-up unit with locking increment settings. The Sierra electric gun also comes with new external features, including a 3-position PDW style butt stock with two QD sling mount attachment points, 280-round hi-cap SMG style magazine, and SMG magazine adapter that fits inside the M4 magazine well.

All ASL+ series rifles are also covered by the Valken 1-year bulletproof warranty.


  • High strength, reinforced polymer construction
  • Full metal, reinforced Version 2 8mm Gen2 gearbox
  • Velocity: 320 - 330 FPS with .20g BBs
  • Length (retracted): 21.5" / 54.61 cm
  • Length (extended): 25.5" / 64.77 cm
  • Outer Barrel Length: 5" with a 3.5" mock barrel extension
  • Inner Barrel Length: 255 mm
  • Weight: 4.75 lbs / 2.15 kg
  • Fire Modes: Safe, semi-auto, full auto
  • Upgraded adjustable rotary hop up system
  • Billet-style receiver for a more modern and aggressive look
  • Free-floating 5" quad rail system for mounting of tactical accessories
  • 3.5" Airsoft barrel extension for a unique profile
  • SMG magazine adapter is designed to be used in the standard M4 magazine well
  • Allows you use Valken SMG style magazines in the Sierra
  • Magazine adapter can be removed to use standard M4 AEG magazines
  • Continuous picatinny top rail for sights and scopes
  • Ergonomic pistol grip
  • Ambidextrous magazine release
  • Ambidextrous fire selector
  • 3-Position PDW style stock for a compact design
  • PDW stock has QD sling mounts on either side
  • Stock tube can house most small stick type 7.4v LiPo batteries
  • Hi-vis flip-up front and rear sights
  • Upgraded 6.03 mm aluminum inner barrel
  • Radial cut gearbox shell
  • Reinforced 22:1 ratio gear set
  • Stainless steel 8mm oil less bushings
  • Reinforced piston with full metal teeth
  • Upgraded torque motor
  • Backed by Valken's 1-Year Bulletproof Warranty

Package Includes:

  • Valken ASL+ Sierra PDW Airsoft Rifle
  • 1x SMG magazine adapter
  • 1x 280rd Hi-cap SMG magazine
  • 1x QD sling mount
  • Cleaning / unjamming rod
  • Instruction manual

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