In Stock
AR57 Ultralight Tactical AR-15 Complete Upper Receiver 5.7x28mm 16" Barrel
Sold byMidwayUSA•Posted Apr 27, 2026
Compare prices for AR57 Ultralight Tactical AR-15 Complete Upper Receiver 5.7x28mm 16" Barrel$740.99
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Deal Summary
- Currently in stock.
- Caliber: 5.7x28
- Category: parts
- UPC: 051497297985
- SKU: 675725
Price History
Deal Details
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.
Other Offers for This Product
Active offers from your catalog for AR57 Ultralight Tactical AR-15 Complete Upper Receiver 5.7x28mm 16" Barrel.
Comparing 5 retailers carrying this product
Lowest Price: $649.99
Highest Price: $784.49
You Save: $134.50
Avg Discount: 6% off
Panzer AR57 16" ULT Upper Assembly 5.7x28mm w/ 50 rd Mag - ULT 0116
Panzer ArmsPalmetto State ArmorySKU/UPC: 51655126859
$649.99$749.99Save 13%
View at Palmetto State Armory
AR57 Ultralight Tactical AR-15 Complete Upper Receiver 5.7x28mm 16" Barrel
Ar57MidwayUSASKU/UPC: 675725
$740.99
View at MidwayUSA
AR57 ULT Upper Receiver Assembly 5.7x28mm 18in 16in Barrel 1/2x28 Thread
Ar57Optics PlanetSKU/UPC: 5FC-URC-AR57-AR57-ULT16
$779.99$909.99Save 14%
View at Optics Planet
5.7x28mm Complete Upper 16 - AR57
Ar57Ammunition DepotSKU/UPC: AR57-ULT16
$784.49
View at Ammunition Depot