AK Builder AK47 Polish Underfolder Receiver Flat Set

$44.00
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AK Builder AK47 Polish Underfolder Receiver Flat

AK47 Polish underfolder receiver flat
Includes lower bolt guide rails
Mag stabilizers need to be trimmed before installing rails
Holes need to be reamed to size after bending
Flat, rails need to be heat treated after bending
1mm thick annealed 4130 steel
922r compliant part
MADE IN THE USA

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AKS underfolder rivet set
Polish underfolder
Hungarian AMMS underfolder
Swell neck rivets for countersunk trunnion holes
MADE IN THE USA

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AK center support for 1mm receivers
Prevents receiver “crush”
0.5mm lengthened Bulgarian copy
Case hardened steel sleeve
MADE IN THE USA