WE Open Bolt Full Metal M4 Airsoft Gas Blowback GBB Rifle - Black

$320.00 $262.40

Model: GR-WE-M4OB-B
Location: L3-049 L3-T20

11 Customer Reviews

by Kory H. on 08/28/2014
"Just received this gun yesterday, and it is amazing! build quality is excellent, it doesn't feel clunky or cheap. Internals were pretty dry when i took it out of the box, but i broke it down, lubed it up and then took it for a test fire and was amazed with this rifle! i definitely recommend this to anyone looking for an amazing experience! 5 stars from me! thank you WE TECH and thank you Evike!!
by Craig C. on 07/12/2014
"This guns like others is a complete DUMP. I bought four additional and appropriate mags for this gun, as I thought maybe its the mags not holding a charge... but, no.

I fire this dumpy gun at least 4 or 5 rounds and it goes limp. Seems like something is happening internal, were all the gas its admitted at once when just I install my newly charged clip.

Is this a common problem with all GBBRs? Because I also got this WELL M4 Open Bolt GBB, and it does the same exact thing. POW, POW, POW, POW, flaaaaattt.

When taking out the clip, I press the value and no gas is holding.

I tried dunking the clip in water, no signs of leaks.

Bummer, because, I really want something that is reliable. I am new to this sport and I am very discourage.

Its a well built gun, and feels nice.... but that is about it. When firing, I give it a 5 out of 10. Believe me, I have my time logged with this gun before and the mechanics needs a whole lot of R&D funds to get it up to speed. Feels clunky and cheep when firing. Again, feels great, the weight feels great, looks and operates like the real thing.. but, if it actually fired, maybe I would review this better. MEH.
by Kenny W. on 02/20/2014
"I've owned this gun for about a couple months now. I am not hard on this gun so its holding up pretty well. Its amazing how realistic this gun is. I mean that beyond the basic field strip. I watched a video on AR-15 assemblies and have found that the WE is very similar in construct, with the exception of the trigger assembly and how the buffer lock is secured. I currently have authentic Magpul (not PTS) handguards, pistol grip, and a mil-spec stock ( the buffer tube is indeed mil-spec). This gun kicks moderately, not enough to effect accuracy. The stock fps is relatively high (CQB incompatible). A $20 NPAS valve will fix that. The finish wears in any places where metal moves against metal (to be expected). Action of the bolt is smooth, bolt release functions fine when firing. However, bolt might not lock if simply charging with an empty mag. Also, if not lubricated properly, the loading nozzle might not ride back with bolt carrier completely. It will when firing, just not with charging. This gun requires maintenance and knowledge of the how the rifle functions and pieces together. This is not something to load green gas and play or oil up every now and then. It will require cleaning and lubrication constantly. This comes with the territory of any high end gas blowback. That said, I would recommend this gun, given the cheaper price and availability of upgrades.

Realistic action and breakdown
Good quality materials and build
Moderate kick
Real steel compatibility
Affordability (relative to other GBBR)

Trigger assembly is not steel (is metal, just not steel)
Polymer loading nozzle and flash hider
The flash hider is glued down but removable
Finish will wear after some use (to be expected)
WE Open Bolt Full Metal M4 Airsoft Gas Blowback GBB Rifle - Black

  • Latest generation of WE Gas Blowback Technology featuring an "Open Bolt" design
  • Gas efficient with high velocity, accuracy and range.
  • New GBB system with higher tolerance for cold magazines and weather
  • Co2 powered magazine available.
  • Realistic hard kick recoil blowback.
  • Railed Upper Receiver w/ Detachable Carry Handle
  • Adjustable Front and Rear Sights
  • Retractable LE Telescopic Stock
  • Working Bolt-catch
  • Full Metal Receiver, Barrel Assembly, and Stock Tube
  • Nylon Handguard, Stock, and Serrated AR Type Pistol Grip
  • Integrated Front and rear sling swivel.
  • Fully Automatic / Semi Automatic select fire.
  • 100% Factory direct part support.

  • Length: 768mm-850mm, Adjustable
    Weight: 3100g
    Inner Barrel: 363mm
    Magazine Capacity: 32rd Open Bolt WE GBB Magazine
    Muzzle Velocity: 410~460 FPS (Measured with 0.20g BBs and Green Gas)
    Thread Direction: 14mm Negative
    Gas Type: Green Gas, Red Gas, Propane Adapter
    Fire Modes: Semi / Full-Auto, Safety
    Package Includes: Gun, Magazine, Manual
    Hopup: Yes, Adjustable
    Manufacturer: WE-Tech
    This product was added to our catalog on Wednesday 14 December, 2011.

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