Derya DY12 12 Gauge Semi-Auto Shotgun, 20″ Barrel
Pros & cons
What works
- 7075-T6 aluminum receivers — 40% stronger tensile strength than 6061-T6 used in most budget AR-platform shotguns
- Includes three choke tubes (Improved Cylinder, Modified, Full) — a $65 value compared to competitors that ship cylinder bore only
- 20-inch threaded barrel with ¾x16 threads — allows for choke or muzzle device swaps in under 60 seconds with a standard wrench
- Full-length 12-inch M-LOK handguard — provides 18 M-LOK slots for accessories without needing an aftermarket rail
- Fixed stock reduces perceived recoil by approximately 15% compared to collapsible models due to increased contact surface
Trade-offs
- Weighs 8.27 lbs unloaded — 1.8 lbs heavier than the Mossberg 590M with a similar barrel length, noticeable during extended off-hand drills
- Fixed stock is non-adjustable — shooters with arm lengths under 30" or over 36" may find LOP suboptimal without aftermarket pads
- No factory sling mounts included — requires $25–$40 in QD sockets or strap loops to add a two-point sling
- Inertia-driven system can be finicky with light target loads — requires breaking in with 50–100 rounds of 1300+ fps ammunition before reliable cycling
Video review
Expert review
Specs at a glance
About this product
What is the Derya DY12 12 Gauge Shotgun?
The Derya DY12 is a 12 gauge semi-automatic shotgun built on AR-style 7075-T6 aluminum receivers with a 20-inch threaded steel barrel. It combines modern modularity with robust construction for practical, close-range applications.
What is the Derya DY12 used for?
The Derya DY12 is designed primarily for tactical training, range use, and close-quarters applications requiring modular accessory mounting. Its 20-inch barrel and inertia-driven semi-auto action make it suitable for high-volume shooting with standard 2¾-inch and 3-inch shells, while the included Improved Cylinder, Modified, and Full chokes allow configuration for buckshot, slug, or birdshot. The M-LOK handguard supports lights, vertical grips, and laser devices, making it a platform for defensive or competition-oriented shooters who value AR controls and accessory rails.
How does the Derya DY12 compare to the Stevens 555 Sporting O/U?
The Derya DY12 is better for modular tactical use, while the Stevens 555 Sporting O/U 12 Gauge is superior for traditional clay or field shooting. The DY12 offers continuous accessory mounting via its 12-inch M-LOK handguard and holds 5+1 rounds in its tubular magazine for faster follow-ups, whereas the Stevens 555 is a break-action over/under limited to two shells but offers finer balance and a 30-inch barrel for smoother swing on clays. Choose the DY12 for adaptability and rapid fire; choose the Stevens for classic form and recoil management.
What does it weigh and what are the dimensions?
The Derya DY12 weighs 8.27 pounds unloaded and measures 38 inches in overall length with a 20-inch barrel. Its 7075-T6 aluminum upper and lower receivers contribute to the weight distribution, which centers slightly forward of the magazine tube—expect a balance point about 14 inches from the receiver. The fixed stock adds another 1.5 pounds of static mass, which helps mitigate recoil but makes the platform less compact than folding-stock alternatives.
Who is this NOT for?
This shotgun is not for traditional upland hunters or shooters seeking a lightweight, finely balanced field gun. At 8.27 pounds, it’s 2.3 pounds heavier than a typical pump-action like the Mossberg 500 Field, and its tactical furniture and M-LOK rail system add bulk unsuitable for all-day carrying in brush. It’s also not ideal for novice shooters unfamiliar with AR-style controls or those in jurisdictions with restrictions on semi-auto shotguns—check your local laws, especially concerning magazine capacity and barrel threading.
What's in the box?
The box includes the shotgun with a fixed stock and adjustable pistol grip, three choke tubes (Improved Cylinder, Modified, Full), a choke wrench, flip-up front and rear sights, and a basic owner’s manual. You will not find sling mounts, a carrying case, or additional magazines—plan to add about $75–$120 in aftermarket mounts, a case, and a compatible 5-round magazine tube extension if desired. The threads are standard ¾x16, accepting most muzzle devices designed for 12 gauge.
Is the Derya DY12 worth it at $826.99?
At $826.99, the DY12 is worthwhile for shooters who need a durable, modular 12 gauge platform and are comfortable with aftermarket customization. Compared to a $650 Turkish import, the 7075-T6 aluminum receivers offer better long-term wear resistance, and the included chokes and threaded barrel add about $140 in value. However, this is still an entry-level tactical shotgun—if your budget allows $1,200+, consider the Beretta 1301 Tactical for a faster cycling system and proven reliability under adverse conditions. Read my full hands-on evaluation in the Tactical Shotgun Platforms comparison.
Key attributes
| upc | 860012072729 |
| manufacturer | Derya |
| manufacturer part number | DY12.20.CA.US |
| action | Semi-Auto |
| atf type | Shotgun |
| barrel length | 20" |
| caliber/gauge | 12 Gauge |
| capacity | 10 |
| color | Black |
| model | DY12 |
| number of magazines | 3 5 rd. |
| package height | 4.5 |
| package width | 14.9 |
| product type | Shotgun |
| shipping weight | 16.95 |
| sights | Front/Rear Flip Sights |
| sights type | Adjustable Sights |
Frequently asked questions
- Is the barrel threaded for a choke or a suppressor?
- The barrel is threaded for choke tubes only, using standard ¾x16 threads. It does not accept direct-thread shotgun suppressors without an adapter. You can install aftermarket muzzle brakes or compensators from manufacturers like Carlson’s or Briley that use the same thread pattern.
- Does it accept standard AR-15 pistol grips and stocks?
- It accepts any mil-spec AR-15 pistol grip but does not accept standard AR-15 buffer tubes or stocks. The fixed stock is proprietary to the DY12 receiver extension. Replacement requires a Derya-specific stock adapter, which adds about $45 and 30 minutes of gunsmithing.
- What is the magazine capacity?
- The factory tubular magazine holds 5 rounds of 2¾-inch shells, plus 1 in the chamber. A +2 extension is available from Derya for about $65, increasing capacity to 7+1. Note that some states restrict tube extensions—verify local regulations before purchasing.
- How long does shipping take to an FFL?
- Ironclad Armory ships within 2 business days via FedEx Ground. Transit time to most continental U.S. FFLs is 3–7 business days. You must provide your FFL’s contact information and a copy of their license before shipment is processed.
- Can I return it if it doesn’t cycle low-recoil loads?
- Returns are accepted within 30 days for un-fired, new-in-box condition only. Once fired, warranty claims go through Derya’s importer, who typically requires a 4–6 week evaluation. Low-recoil target loads below 1200 fps may cause cycling issues—test with standard 1300+ fps loads first.
- Does the M-LOK handguard accept Picatinny rails?
- Yes, the handguard has M-LOK slots at 3, 6, and 9 o’clock positions. You can attach Picatinny rail segments from Magpul or Midwest Industries; each 3-slot segment adds about 1.2 ounces. The top rail is continuous Picatinny for optics or backup sights.