Home / AR Parts / Ar Five Seven Center / AR57 Ultralight Tactical AR-15 Complete Upper Receiver 5.7x28mm 12" Barrel
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AR57 Ultralight Tactical Complete Upper Receiver 5.7x28mm 12" M-LOK
$599.99 22% off MSRP 7 in
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Specifications
Caliber
Brand
Model
ULT
MPN
ULT12
UPC
051497388553
MSRP
$767.51
Barrel Length
12"
Finish
Black Melanite
Fits
AR-15 lower receiver; accepts FN PS90 magazine (not included)
Color
Black
Description
The AR57 Upper Receiver Assembly converts an AR-15 to shoot 5.7x28 FN ammunition. The unique upper design loads on top and accepts FN PS90 magazine (not included) and ejects downward through the AR-15 magwell. This upper is precision machined from a one piece aluminum forging. Forged from one 7075 T6 Mono bloc Aluminum, called a Kryptonite Mono bloc with a Black Melanite Treatment Finish.
