How to Build an AK-47
Part Three of our series on US AK47 builders
- KY-AK's Custom Bullpup AK47 build

   This is a home made AK47 Bull Pup design. Made to his own custom design, not a mock up of an existing one being mass produced somewhere. We saw this one and asked the builder if we could feature it, we know many will be interested in such an original design with such a detailed write up of it's creation. Thanks to KY-AK for the permission to feature this Bullpup AK47

For more about the project
http://AKforum.com

I put at least 60 hrs. into this build.and at least a gallon of sweat and blood.....not to mention the brain ache from trying to get the trigger linkage inside the receiver and trying to fix the slippage problem I had on the first

This is the second one I've done the proto type was UGLY... but it shoots nice. It taught me a lesson or two and proved that my trigger design worked well..... So I started this one and put more into the looks.....I think its a pretty good rip-off of the Norinco.... And the trigger is going to be internal on this one. It went through a peace of angle iron welded to the outside of the receiver on the first....

Here is a pic of the first

    I put it the pistol grip that far forward because this is the second one that I've made and the first one was to far back......and I couldn't shot it with a drum.....It's not as far forward as it appears.... the entire rifle is only 26" long.....and with a drum in it my arm still rest on the side of the drum.....It's really pretty comfortable...... and I am 6' tall so I like the reach.

How did you solve the mushy trigger problem

I used bicycle cable, but I found a feed tube from a mig (wire feed) welder
It was much studier than the aluminum tube that came with the bike cable Since then I've found that Throttle cable for a lawn mower is the same and much cheaper.... You still want the cable from the a bicycle since the throttle has a wire in it....

This said I had to file the trunion to make room for the cable sheath to pass under the trunion.... you can see the way I did the first trigger, this one is a little different than the first...I actually welded a block on the side of the triggers that the cable passes through and has a set screw that tightens down

The secret is the cable has to go over the top of the block and go through the back... This makes the trigger go down instead of trying to pull forward, which is what happens if you hook it directly to the front..... Think of it like the cable on a carburetor... it has a cam....

My cheek weld is directly to the top cover... about the middle of the cover

Hows muzzle climb with the stock so low on the receiver?

They both shoot really well.... really nice balance makes holding steady much easier...You can use your non-shooting hand as a brace to your torso.... The muzzle climb is no worse than a standard AK..... much better balanced....MUCH 20 rounds of Wolf HP at 25 yrds the shoots were fired leaning over the hood of my Jeep

15 rounds of Lead nose Norinco at 25 yrds the shoots were fired leaning over the hood of my Jeep

I really love the feel however I think this may be the last..... To many hours involved..... About 60 hrs in the last one.... main fabricating the fore-grip and trigger component's... but the are well worth it but I can put a kit together from a flat to standard configuration in about 12 to 14 hrs if the is de-milled already......

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Here's a Chinese Bullpup AK47
Norinco 86S Bullpup AK

Here's a Finnish Bullpup AK47 type
Valmet M82

US made AKU-94