Receiver Flats

AK-Builder Flat

The front of the receiver is trimmed out far enough to allow the trunnion to just slide in without trimming unlike the other flats that are on the market.  Theirs are stamped and need the flange to be a certain length to be bent.  My top rails are CNC machined to look like the original receivers.

Top Rail Fit

$38.50
1.5mm
These flats are for the bulged trunnion RPK 47 7.62 parts kits.  The flats and rails are made from 4130 and are in the soft annealed condition and need to...
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$37.50
1.5mm
Finally there is an alternative to the home builder to make your own professional grade 1.5mm receiver from a flat.  The material these are made from is...
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$37.50
1.5mm
Finally there is an alternative to the home builder to make your own professional grade 1.5mm receiver from a flat. The material these are made from is .063...
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$37.50
1.5mm
Finally there is an alternative to the home builder to make your own professional grade 1.5mm receiver from a flat. The material these are made from is .063...
In Stock
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$37.50
These flats are for the bulged trunnion RPK 74 Bulgarian kits.  The flats and rails are made from 4130 and are in the soft annealed condition and need to be...
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$37.50
1.5mm
This is the 1.5mm 4130 flat and rails for the M85 kits that are out.  It's basically just our standard M70 underfolder flat without the pin holes cut for...
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$37.50
1.5mm
Finally there is an alternative to the home builder to make your own professional grade 1.5mm receiver from a flat. The material these are made from is .063...
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$35.00 $34.95
1mm
The Polish Underfolder is the most popular underfolder parts kit and this was the first specialty flat that I had perfected by modifying existing flats in...
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$35.00 $34.95
1mm
This flat will work with the M92 or M70 that has the flat sided front trunnion . These will NOT WORK with the bulged RPK style trunnions.   There...
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$35.00 $34.95
1mm
These are the correct flats for the AMD-65 parts kits with the sidefolding stock.  These do not need the sidefolder reinforcement plate.  The holes on the...
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$37.50 $34.95
1mm
This flat was made for the Bulgarian style sidefolding triangle or polymer stock.  The magwell and magwell dimples are made to fit 5.45 magazines.  If you...
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$35.00 $34.95
1mm
THESE DO NOT HAVE ALIGNMENT HOLES IN THEM ANYMORE The AMMS trunnions I have seen are machined unlike the Polish which are stamped and welded...
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