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Bone Yard - Elite Force / Umarex full metal gearbox M4A1 Airsoft AEG - Black or Desert (Store Display, Non-Working Or Refurbished Models)

3 Customer Reviews

by nate h. on 02/15/2015
"Just got this gun a few days ago and apart from a broken charging handle spring it was tip top. Seeing the how the charging handle is only for opening the breach to adjust hop on this model, I pretty much got a 100% working gun for about half the normal price. Came with 2-300rd high caps 8.4v nunchuck and charger.
by Joe S. on 07/17/2014
"Got mine last week. Nothing seemed to be wrong with it (fired fine out of the box) but then it stopped firing and there was just a click noise coming from the gearbox. Opened it up, and found the problem. The piston and sector gear were jamming. The last tooth on the sector gear was catching the last tooth on the piston when the piston went forward. So I just removed the last tooth on the sector gear and all is well now. Also did a better shim job and corrected the AoE.

The gearbox isn't half bad! It has an electronic trigger (not the original contacts one), cylinder is nice, and the gears were well made. Piston has metal teeth, steel bushings. Hop up and barrel are average. Overall for $80 it was alright for a plastic M4 with an easy fix.
by Landon H. on 10/07/2013
The gun I received was black, came with 2 working plastic hi-cap mags, an 8.4v nunchuck battery, and a charger. Icing on the cake.

- When I shot the gun I heard a faint click every time I pulled the trigger.
- BB's weren't flying out of the hop-up chamber.

The gearbox only needed a once-over and the hop-up needed a new bucking. Both were cheap, easy fixes.

Something to keep in mind though is that this is an ARES Sportsline AEG. Think proprietary parts. If you plan on using regular parts the hop up unit is wheel based and the chamber cannot fit a normal M4 hop up unit. It simply cannot fit due to lack of space in the upper receiver. Also, I tried to use a metal lower receiver and the pins that came with the gun are 1mm to large to use in any other lower receiver.

This gun uses 80% of the vast wealth of M4 parts (which are cheap and easy to find). For the price this AEG cannot be beaten.