5.56 AMMO for Sale
Browse 5.56 Ammo listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
The 5.56x45mm NATO cartridge was introduced in the early 1960s for military use. It balances lightweight design and effective range. Today, it remains a popular rifle caliber for self-defense, competition, and law enforcement.
Why It's a Top Choice
- Light recoil for rapid follow-up shots
- Widely available and affordable
- Compatible with numerous rifle platforms
- High velocity for flat trajectory
- Effective terminal ballistics for medium game
Key Variants
M855
Standard military green-tip round used for durability and penetration.
M193
Early 55-grain FMJ round favored for training and civilian use.
Open Tip Match (OTM)
Precision-focused round for competition and target shooting.
77-grain MK 262
Enhanced match-grade load for improved accuracy and barrier penetration.
Competitor Comparison Table
| Feature | 5.56 Ammo | 7.62x39 Ammo | .300 Blackout Ammo |
|---|---|---|---|
| Typical Velocity (fps) | 3000 | 2300 | 2200 |
| Energy (ft-lb) | 1300 | 1200 | 1200 |
| Typical Use | Self-defense, Duty, Target | Hunting, Duty, Target | Suppressed, Hunting, Duty |
| Availability | High | High | Moderate |
| Penetration/Expansion | Varies with projectile type | Generally deeper penetration | Effective in barriers |
| Popular Platform | AR-15 rifles | AK and variants | AR-15 with barrel change |
Best Use Cases
- Self-defense and home protection
- Law enforcement duty and patrol
- Competitive shooting events
- Small- to medium-game hunting
- Training and range practice
FAQs
Can I use 5.56 ammo in all AR-15 rifles?
Most AR-15 platforms chambered in 5.56 NATO safely fire 5.56 ammo. Verify your firearm's chamber markings before use.
What is the difference between 5.56 NATO and .223 Remington ammo?
5.56 NATO has higher pressure and thicker chamber dimensions. Using 5.56 in a .223-only rifle may be unsafe.
How does 5.56 ammo perform for hunting?
Effective on small to medium game with proper bullet choice; commonly used for varmints and deer-sized game.
Prefer nearby results? Toggle to search local listings.
IWI Carmel 5.56NATO (CSR16)
$1,899.99
Gemtech G5 5.56mm Suppresor
$799.99
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