Panzer AR57 16" ULT Upper Assembly 5.7x28mm w/ 50 rd Mag - ULT 0116
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Panzer Arms
Overview
The Panzer AR57 16" ULT Upper Assembly is a complete upper designed for the AR-15 platform, chambered in the unique 5.7x28mm caliber. Its 16-inch barrel offers a balance between maneuverability and velocity, making it suitable for various shooting applications. This upper assembly is particularly popular among builders looking to integrate the 5.7x28mm caliber into their setups, making it an ideal choice for those interested in a compact yet powerful configuration.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the Panzer AR57 16" ULT Upper Assembly 5.7x28mm w/ 50 rd Mag - ULT 0116 to a build in August 2026.
It was hard to find in September 2026, in stock on only 4 of the 27 days we checked, and today 2 of the 3 retailers we track have it in stock. It dipped to $649.99 at Palmetto State Armory for a stretch in September 2026, under its usual $699.99, so sales do come around. Buying today, the lowest price is $599.99 at Palmetto State Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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