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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 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)
• Muzzle brake installed (1/2x28)
• Free-float M-LOK handguard
• One (1) 50-round P90/PS90-pattern magazine

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-OK
Brand: AR57 (AR Five Seven)
Manufacturer: Panzer Arms
SKU / UPC: ULT0116 / 051497297985

Shipping, Pickup & Transfer:
Ships from Fort Wayne, IN. Fast shipping nationwide and across Michigan — including Detroit, Grand Rapids, Lansing, Ann Arbor, Flint, Kalamazoo, and surrounding areas.
This item is not a firearm (it is an upper) and can ship to a home or business address where legal.
Local pickup in Fort Wayne is welcome by appointment.
Shipping costs are 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 [email protected] for questions and support.

 

YouTube Review:
Want to see it in action? We filmed a full YouTube review with shooting footage, mag changes, reliability testing, and breakdown of the Panzer Arms AR57 ULT upper.
Watch the full review on YouTube.

 

Frequently Asked Questions:

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

What magazine is included?
One (1) 50-round P90/PS90-pattern magazine and a matched bolt carrier group (BCG) are included.

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]

 


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Buy Now:
Order online at GunZoneDeals.com for fast shipping from Fort Wayne, IN to all 50 states where legal — including statewide Michigan service to Detroit, Grand Rapids, Lansing, Ann Arbor, Flint, Kalamazoo, and surrounding regions. In stock and ready to ship. Gun parts for sale — AR57 upper for sale — buy online. Secure checkout, fast processing, tracking provided when shipped. 90-Day Layaway with 25% down and financing up to 0% APR available for qualified buyers.

 

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