I recently purchased my first new AEG in several years.  I’ve been wanting a lmg for awhile, and also wanted something new and better for my mujihadeen loadout so I went with the Cyma rpk.

I have to say, I’ve been really pleased with this one.  Mine chronoed in at 375 at my local field, so great usuable velocity.  Most reviews I’ve read have clocked it closer to 420.

Anyway, I’ve played a few games with it, so here’s the break down.

The battery is a huge disappointment.  The battery compartment is short and oddly shaped so, pretty much only a custom battery is going to fit in there.  It comes with a 1200 pack.  I rebuilt a small type 1600 mah pack, but still wasn’t very happy with that.  It should get you through the included mag,  but I picked up a large drum to go with mine and was planning to use it.

I drilled a small hole in my stock, and have been using a 7.4v 30c 5000mah hardcell lipo by ecopower.  It’s pretty much the house brand for Amain hobbies.  They’re cheap and come set up with deans plugs.  I like the hardcell packs for airsoft because they hard case gives the pack some protection from hits, bumping into things, etc.  The ecopower batteries are horrible.  One pretty much failed on me right away.  I've been running this in a external battery pouch and have been really happy with that setup.  In the future I'm planning to switch to Venom Racing's new battery with built in monitor.

Rof has been decent, nothing to write home about, nut nothing to sneeze at either.  It’s a pretty good usable rof for an lmg.  Just moderate.

Range and accuracy is really where this gun shines.  It has a 500mm barrel in it, and honestly should be able to easily accommodate a longer 650mm barrel.  Using the stock barrel and hopup the lmg can practically serve as a dmr.  I think with some upgrades including a scope, a long tight barrel and good hopup, you could easily build a solid dmr out of this.

Externals are phenomenal.  I really wish more ak’s were built like this.  The rpk really isn’t any more difficult to strip than most ARs so that’s a great plus for this one.  Remove a couple of screws and a large pin and you have the front end off the gun with the barrel and hopup.  Few more screws and you have the mechbox out.  Easy as pie.

The stock does wobble a bit out of the box.  Other reviews have indicated this as well.  It’s really an easy fix though.  Just remove the stock and pad the metal post it screws to with some electrical tape.  Tap the stock back onto the body, screw it on tight and wobble gone.

I’ve already stripped mine completely to have a look at the internals.  Shimming seemed ok.  Not great but not horrible.  Pretty much the same for the AOE.  I picked up a new cylinder set for mine and immediately ran into some issues.  Turns out the RPK uses a version 2 cylinder head, not a version 3.  The only other issue I’ve ran into with mine is the liberal use of red loctite on the barrel and hop-up.  I’m planning to either replace or mod the stock hopup.  In a standard ak, the adjustment slider has the internal upper to support it.  In the rpk, there’s nothing there, so the slider wobbles and shifts pretty badly.

All in all, this is a great gun for the money.  Externals are amazing.  Internals, are on par of a cyma.  It’s doesn’t look like anything is going to fail anytime soon, (I have about 10k bbs through mine so far) but they’re not the greatest either.  I really look forward to the potential of this aeg as a project gun.

I will say, coupled with the electric drum, this gun has become feared locally,  it’s long range and ability to sustain fire make this aeg quite formidable.