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Panzer Arms AR57 16" ULT Complete Upper – 5.7x28 Top-Fed AR-15 Upper
SKU: ULT0116 • UPC: 051497297985 • Brand: AR57 • Manufacturer: Panzer Arms

Build a uniquely smooth, lightweight, and low-recoil AR-15 platform with the Panzer Arms AR57 16" ULT upper in 5.7x28mm. This drop-in complete upper feeds from a top-mounted P90/PS90-pattern magazine and ejects downward through the magwell, keeping your sight picture clear and making it excellent for left-handed shooters.

• Top-fed P90/PS90-pattern magazine system (50-round mag included)
• Downward ejection – brass clears through the magwell
• Drop-in ready for standard AR-15 mil-spec lowers
• Matched BCG included
• Free-float M-LOK handguard + full-length Picatinny rail
• 1/2x28 threaded muzzle with muzzle brake installed
• Fast follow-up shots and less felt recoil than 5.56
• Clean sight picture for red dots and LPVOs

What’s Included:
• Panzer Arms AR57 16" ULT complete upper receiver (5.7x28mm)
• Matched bolt carrier group (BCG)
• 1/2x28 muzzle brake installed
• Free-float M-LOK handguard
• One (1) 50-round P90/PS90-pattern magazine

Real Range Footage & Breakdown:
We filmed a full YouTube review showing the Panzer Arms AR57 ULT upper, P90 mag loading, recoil, and how it fits mil-spec lowers.

Watch the YouTube review here.

Specifications:
Caliber: 5.7x28mm
Barrel Length: 16"
Thread Pitch: 1/2x28
Operating System: Straight blowback, downward ejection
Magazine Type: P90/PS90-pattern
Magazine Capacity (included): 50 rounds
Lower Compatibility: Standard AR-15 mil-spec lowers
Top Rail: Full-length Picatinny
Handguard: Free-float M-LOK
Brand: AR57 (AR Five Seven)
Manufacturer: Panzer Arms
SKU / UPC: ULT0116 / 051497297985

Shipping, Pickup & Transfer:
Ships from Fort Wayne, Indiana, with fast delivery across New Haven, Auburn, Columbia City, Kendallville, Angola, Warsaw, Bluffton, Huntington, and the surrounding Northeast Indiana region, as well as nationwide anywhere this item is not restricted.
This item is not a firearm (it is an upper) and can be shipped to a home or business address where legal.
Local pickup in Fort Wayne is welcome by appointment.
Shipping rates can be verified in the shopping cart during checkout.
Buyer is responsible for ensuring local compliance. If your state requires an FFL for this item, we will follow required transfer procedures.

Payment & Financing:
90-Day Layaway available with 25% down.
Financing up to 0% APR for qualified buyers.
Email for details.

Visible Q&A:

Does this require an FFL?
No — uppers are typically non-serialized, but check local/state laws. If your state requires an FFL for this item, we will follow required transfer procedures.

What magazine is included?
One (1) P90/PS90-pattern 50-round magazine.

Will it fit any AR-15 lower?
Yes — designed for standard AR-15 mil-spec lowers.

Is the barrel threaded?
Yes — 1/2x28 with muzzle brake installed.

Contact:
Email: [email protected]
Local pickup in Fort Wayne available by appointment.

Keywords (for search):
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