AMMO INDEX

9mm$28.99/50rd▼ -4.9%.45 ACP$42.5/50rd▲ +3.2%.40 S&W$31.99/50rd▼ 0.0%10mm$44.99/50rd▲ +3.4%5.56$49.99/100rd▼ -7.4%.308$64.99/20rd▲ +2.3%6.5 CM$44.99/20rd▼ -4.3%7.62x39$39.99/100rd▼ -11.1%12ga$22.99/25rd▲ +2.2%.22 LR$18.99/325rd▼ -5.0%9mm$28.99/50rd▼ -4.9%.45 ACP$42.5/50rd▲ +3.2%.40 S&W$31.99/50rd▼ 0.0%10mm$44.99/50rd▲ +3.4%5.56$49.99/100rd▼ -7.4%.308$64.99/20rd▲ +2.3%6.5 CM$44.99/20rd▼ -4.3%7.62x39$39.99/100rd▼ -11.1%12ga$22.99/25rd▲ +2.2%.22 LR$18.99/325rd▼ -5.0%

✦ AI POWERED

RIFLE AMMUNITION

5.56x45mm

$49.99per 100rd

$0.500/rd▼ -7.4% this week

Buy Now — Best Price Price History

Price at a Glance

Current Price$49.99

Previous Price$53.99

7-Day Change-7.4%

Price Per Round$0.500

Box Size100 rounds

✦ AI Price Analyst

30-day forecast powered by Claude

Click "Get AI Forecast" for a 30-day price prediction and buy/wait recommendation for 5.56 ammo.

Compare Retailers

Palmetto State Armory$49.99 →Brownells$50.49 →Lucky Gunner$50.99 →Ammo.com$51.49 →Wideners$51.99 →

5.56x45mm — Buying Guide 2026

The 5.56x45mm is one of the most tracked calibers on FieldOps HQ. Currently priced at $49.99 per 100 rounds ($0.500 per round), it has seen a -7.4% change over the past week.

When to Buy 5.56 Ammo

Based on 3 years of price data, 5.56 ammo is best purchased when the price-per-round drops below $0.450. Set a price alert above to get notified automatically.

Best Uses for 5.56x45mm

5.56 is widely used for target shooting, hunting, and home defense in rifle platforms. The combination of velocity and energy makes it effective across multiple applications.

Other Calibers