Description

Derya DY12 12 Gauge 20-Inch Semi-Auto Shotgun, Black

The Derya DY12 12 gauge 20-inch semi-auto shotgun, black is a magazine-fed gas-operated shotgun that combines AR-style controls with a threaded barrel and adjustable stock. Built around forged 7075 T6 aluminum receivers, this model gives you familiar handling, modular fit, and reliable cycling for range days or home defense.

Manufacturer	Derya Arms
Model	DY12
Material	7075 T6 Aluminum receivers (per manufacturer specs)
Compatibility	12 Gauge, 3-inch chamber, detachable box magazines
Finish	Black anodized
Weight	7.5 lbs (approx., unloaded)
Condition	New

Key Features

AR-Style Adjustable Stock & Pistol Grip — Why it matters: You can set length of pull and cheek weld to fit different shooters, from teens to adults, without tools.
Threaded 20-Inch Barrel — Why it matters: Accepts standard choke tubes or muzzle devices, letting you tune pattern spread for clays, slugs, or buckshot.
Gas-Operated Semi-Auto Action — Why it matters: Reduces felt recoil compared to fixed breech shotguns, making it more comfortable for newer shooters and faster for follow-up shots.
Flip-Up Iron Sights — Why it matters: Ready out of the box for precise aiming, with a low-profile sight picture that clears optics if you add a red dot later.
Magazine-Fed Design — Why it matters: Reloads faster than a tube magazine, and you can carry extra pre-loaded mags for quick capacity changes on the range or in training.

Who It’s For

This shotgun fits families who want one platform that adjusts to multiple users. It works for new shooters learning the basics, for youth shooters moving up from a .22, and for experienced owners who want a reliable semi-auto for home defense or recreational shooting. The familiar AR-style controls reduce the learning curve if you already shoot rifles.

Pros & Cons

Pro: Adjustable stock lets you fit the gun to the shooter, not the other way around.
Pro: Gas system tames recoil, which helps beginners stay on target.
Pro: Threaded barrel opens up choke options for different loads.
Con: Magazine-fed shotguns can be more sensitive to ammunition selection — stick with high-brass loads for first 200 rounds to break in the action.

Comparison: Derya DY12 vs. Competitors

Feature	Derya DY12	Mossberg 930 JM Pro	Remington 870 (Pump)
Action	Gas semi-auto	Gas semi-auto	Pump
Barrel Length	20 in.	22 in.	18.5 in.
Stock	Adjustable AR-style	Fixed synthetic	Fixed synthetic
Magazine	Detachable box (5-rd)	Tube (8+1)	Tube (6+1)
Receiver Material	7075 T6 aluminum	Aluminum alloy	Steel
Weight	~7.5 lbs	~7.7 lbs	~7.0 lbs
Price	~$817	~$850	~$450

The DY12 stands apart by offering an adjustable stock and magazine feed in a semi-auto package at a competitive price. The Mossberg 930 JM Pro is a proven competition gun but lacks stock adjustability. The Remington 870 is cheaper and reliable but requires manual cycling and has a fixed stock.

FAQ

What is the magazine capacity of the Derya DY12?

The Derya DY12 ships with a 5-round detachable box magazine. Aftermarket options may be available for higher capacities, but always check local laws before purchasing.

Does the Derya DY12 require a break-in period?

Yes. Per Derya Arms specs, use high-brass 12-gauge loads (1,200+ fps) for the first 200 rounds to fully seat the gas system and moving parts. After that, it cycles most target and field loads reliably.

Is the Derya DY12 compatible with standard AR-15 grips and stocks?

The stock and pistol grip use a mil-spec buffer tube interface. You can swap the stock for any standard AR-15 carbine stock, but the pistol grip is proprietary to the DY12 lower receiver.

Can I mount a red dot or scope on the DY12?

Yes. The upper receiver has a Picatinny rail section, and the included flip-up sights co-witness with most micro red dots. A low-profile mount works best to keep a cheek weld.

Is the Derya DY12 suitable for left-handed shooters?

The DY12 ejects from the right side. Left-handed shooters can use it, but may need to adjust their cheek position to avoid ejected shells. The adjustable stock helps to some degree.

Ready to Order

✓ Nationwide delivery to all 50 states
✓ Ships within 1-2 business days
✓ 30-day return policy on new unopened items
✓ Secure checkout with encrypted payment

Explore more options: Semi-Auto Shotguns | Home Defense Shotguns | AR-Style Shotguns

Last updated: April 2026