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Derya Arms

Derya MAX

Magazine-fed 12-gauge semi-auto built on an all-new proprietary platform, manufactured at Derya's Jacksonville, Florida facility. Ships September 2026.

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Key Highlights

  • Proprietary polymer magazines with metal feed lips address the top mag-fed shotgun failure point
  • MAX Brake plus double-buffered recoil system cuts felt recoil roughly 20%
  • Self-cleaning curved gas piston runs 7/8 oz target loads through 3-inch magnums without piston swaps

Specifications

Price
$2,499
Weight
9 lb 8 oz
Calibers
12 Gauge
Rail Type
picatinny

Capability Profile

0-10 Scale Across 8 Axes

Compatibility Tags

family: shotgunshotgun: semi-autocaliber: 12-gaugeinterface: picatinny-topmag-type: derya-maxbarrel: longmuzzle: choke

Overview

The Derya MAX is a magazine-fed 12-gauge semi-automatic built on an all-new proprietary platform rather than a revision of Derya's existing DY12 and MK-12 guns. Derya designed it around the failure mode that defines the category: on mag-fed shotguns the magazine itself, not the action, is the primary source of stoppages. The MAX answers that with proprietary polymer magazines using metal feed lips and an enlarged magwell.

Operation is a curved, self-cleaning gas piston that extends into the forend and sheds carbon as it runs, which lets a single piston cycle everything from light 7/8 ounce target loads up to 3-inch magnums without swaps. Recoil is managed by a double-buffered system paired with the proprietary MAX Brake, a progressive compensator Derya credits with roughly a 20% reduction in felt recoil.

Ergonomics are AR-derived: an AR-adaptable pistol grip, ambidextrous safety, a full-length Picatinny top rail, and an adaptive stock adjustable from 12 to 15 inches of pull. The click-in polymer forend removes without tools for gas system access, and the receiver breaks down from the rear like an AR. Every MAX is manufactured at Derya's Jacksonville, Florida facility.

Key Features

  • Proprietary 5- and 10-round polymer magazines with metal feed lips
  • Curved self-cleaning gas piston, no piston swap between load weights
  • MAX Brake progressive compensator with double-buffered recoil system
  • Adaptive stock with 12 to 15 inch adjustable length of pull
  • Full-length Picatinny top rail with flip-up iron sights
  • Tool-free click-in polymer forend for gas system access
  • Mobile choke set: Full, Modified, and Improved Cylinder

Pros

  • +Magazine design targets the specific failure point that plagues mag-fed shotguns
  • +Single gas piston handles 7/8 oz target loads through 3-inch magnums
  • +Turnkey package includes chokes, flip-up sights, tool roll, and hard case

Cons

  • At 9.5 lbs it carries 1.7 lbs over a Benelli M4 Tactical and 2.2 lbs over a Beretta 1301 Tactical Mod.2
  • Proprietary magazines mean no aftermarket or cross-platform mag supply
  • Not compliant in California, Maryland, or Massachusetts

Detailed Specifications

caliber
12 Gauge
Barrel Length
18 inches (20-inch and 14-inch SBS also offered)
Overall Length
38 inches
weight
9.5 lbs
Stock
Adaptive adjustable stock, 12 to 15 inch LOP
Trigger
Single-stage shotgun trigger
capacity
5- or 10-round detachable box magazine
actionType
Gas piston semi-auto
sku
MAX.18.US
msrp
$2,499 Factory Exclusive

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