Bullpup AKs

Ta. The irony is, sorting out the rubbish standard bits is proving harder than the conversion. At the moment I'm on my third version of trying to stop the top cover rattling and the fake bolt/hop up cover wobbling all over the place. Paint may have to wait until I've stopped taking the thing apart every five minutes. Although if anyone has any tips on getting a blued steel paint effect, I'm all ears.

 
Last bit of fabrication. As standard the top cover rattled and the fake bolt flaps around all over the place. I've made a small block that is epoxied into a gap in the receiver onto this is bolted a strip that bears against the top inside face of the bolt stopping it tipping inwards. The bolts also locate the recycled leaf spring that used to fit under the rear sight. This pushes up on the inside of the top cover, holding against the metal of the receiver. No more rattle.

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There's a bit of fiddling around getting wiring into place and then at last I'll be able to get rid of the blue!

 
I threw together the gearbox today to see what the SRC Ultra High Torque motor was capable of. 7.4v, 18:1 gears, M100 spring, 12rps and pulled 24A doing it! No wonder the motor gets warm. That's really poor performance for something with such strong magnets. And I know I said the gearbox was thrown together, but it was decently shimmed and lubricated, I just didn't spend a lot of time fine tuning.

So a SHS HT and 13:1 gears are on the way, along with bits that are definitely better than the very average SRC internals.

On the plus side, the BTC Chimera is an awesome piece of kit. I want them in all my guns. The pre cocking is fantastic. I was monitoring the piston position and it is absolutely spot on every time. You can set it right to the point of piston release which means the trigger response is instant. Love it!

 
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