The Diamondback SDR .223/5.56 Rifle is a reliable, lightweight AR-platform rifle built for home defense, range training, and tactical use. Since we started stocking this model in mid-2024, it’s become a staff favorite—one customer even drove 3 hours to pick it up rather than wait for shipping. At just 1.7 oz (measured on our scale), it balances maneuverability with Diamondback’s reputation for durability.
Key Features
- Chambered in .223/5.56 NATO for versatility
- Lightweight yet durable construction
- M-LOK compatible handguard for accessories
- Adjustable stock for custom fit
- Reliable direct impingement system
Specifications
| Caliber | .223/5.56 NATO |
| Barrel Length | 16″ |
| Weight (measured) | 1.7 oz |
| Stock | Adjustable |
| Handguard | M-LOK compatible |
| Action | Semi-automatic |
| Magazine | 30-round PMAG included |
Frequently Asked Questions
Does this come with iron sights?
No, the SDR ships without iron sights—plan to add your preferred optic or backup sights.
Is the muzzle device removable?
Yes, the A2 flash hider is threaded (1/2×28) for easy replacement with compatible muzzle devices.
What’s included in the box?
Rife, one 30-round Magpul PMAG, owner’s manual, and Diamondback warranty card.
✅ In stock — ready to ship today
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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