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Quick Look
The Ruger AC556 is a select-fire rifle introduced in the 1970s as a semi-automatic and fully automatic variant of the Mini-14. Its design emphasizes ruggedness and ease of maintenance. Today, the AC556 stands as a niche model prized for collector interest and specialized shooting.
Why It's a Top Choice
- Renowned for durable gas-operated action
- Selectable fire modes for versatility
- Simple, reliable rotating bolt system
- Compatibility with standard Mini-14 magazines
- Strong collector and enthusiast demand
Key Variants
Ruger AC556 — Designed for military and law enforcement seeking selectable fire capability.
Competitor Comparison Table
| Feature | Ruger AC556 | M16A1 | FN FAL |
|---|---|---|---|
| MSRP | Varies (collector pricing) | Approx. $700 (military issue) | Approx. $900 |
| Capacity/Size | 20-round magazine, 5.56×45mm NATO | 20–30 rounds, 5.56×45mm NATO | 20-round magazine, 7.62×51mm NATO |
| Weight | Approx. 7.0 lbs | Approx. 6.5 lbs | Approx. 9.0 lbs |
| Optics-Ready | No (iron sights standard) | Yes (early models varied) | Varies by variant |
| Trigger Type | Selective fire, standard trigger | Selective fire, semi-automatic and burst | Semi-automatic, full-auto in select models |
| Notable Pro | Rugged build with select-fire option | Standard issue for US military | Powerful 7.62mm cartridge |
| Notable Con | Less common, parts availability limited | Higher recoil than Ruger AC556 | Heavier and bulkier |
Best Use Cases
- Specialized collection and display
- Historical shooting and demonstrations
- Self-defense with select-fire control
- Law enforcement training (where legal)
- Range practice with semi-auto mode
FAQs
Can I legally own a Ruger AC556 select-fire rifle?
Ownership depends on federal and state regulations, including NFA restrictions on automatic firearms. Consult local laws and a licensed dealer before purchase.
What caliber does the Ruger AC556 use?
It chambers the 5.56×45mm NATO cartridge, compatible with standard Mini-14 magazines.
How does the AC556 differ from the Mini-14?
The AC556 adds a select-fire capability for fully automatic or semi-automatic fire, while the Mini-14 is semi-automatic only.
