The 5.5mm AK folding stock is one of the most sought-after upgrades for shooters who want modern performance without compromising reliability. Designed for AK-47 and AK-74 platforms, this stock combines rugged durability with tactical versatility — giving your rifle the perfect balance between function, form, and control.

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🔩 Why Choose a 5.5mm AK Stock from Mounts Plus?

If you’re running an AK-pattern rifle, you already know the value of precision parts. This 5.5mm AK stock is engineered to fit rifles that use a 5.5mm rear trunnion, offering a tight lockup, smooth folding action, and rock-solid stability when extended.

Here’s why it’s trusted by builders, collectors, and shooters alike:

• Fits Most AK Platforms: Perfect for AK-47, AK-74, and other models with 5.5mm folding trunnions.

• Durable Construction: Made from high-strength materials for long-lasting performance in harsh environments.

• Folding Functionality: Quickly folds to the side for compact storage and transport.

• Easy Installation: Mounts directly to your existing trunnion with minimal fitting required.

• Customizable Feel: Compatible with many aftermarket buttstocks and adapters for a personalized setup.

Whether you’re upgrading a classic AK or building a modern tactical rifle, this folding stock delivers smooth operation, rock-solid alignment, and a professional-grade finish.

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⚙️ Technical Specifications

• Type: 5.5mm AK Folding Stock

• Compatibility: AK-47, AK-74, and rifles with 5.5mm rear trunnions

• Mount Type: Folding hinge with secure lockup

• Material: High-strength steel and polymer components (varies by model)

• Finish: Corrosion-resistant coating

• Installation: No gunsmithing required for compatible receivers

Note: This stock is compatible with most Russian-pattern rifles and AK variants that use the 5.5mm hinge system. Always verify trunnion specs before installation.

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🔧 Performance Meets Purpose

AK owners demand reliability, and this 5.5mm folding stock doesn’t disappoint. Its locking mechanism holds firm under recoil, the hinge pivots smoothly, and its ergonomic design ensures a consistent cheek weld and stable shooting stance.

When folded, the stock tucks neatly along the rifle’s side — ideal for transport or confined shooting spaces. When deployed, it locks back into position for uncompromising control.

This isn’t just an upgrade — it’s the foundation of a modern, battle-ready AK setup.

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🔗 Compatible Rifles

This 5.5mm folding stock is compatible with most AK rifles built on a 5.5mm rear trunnion, including:

• Russian-pattern AK-74 rifles

• Bulgarian and Saiga rifles with 5.5mm folding systems

• Converted AKM or stamped-receiver rifles with 5.5mm trunnions

For rifles using a 4.5mm or fixed trunnion, you’ll need a stock adapter (available at Mounts Plus).

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🧰 Installation Tips

1. Verify your AK uses a 5.5mm rear trunnion.

2. Remove your existing fixed or folding stock.

3. Align the hinge pin with the trunnion mount.

4. Secure with included hardware or factory pins.

5. Test folding and locking functionality before use.

If your rifle is a custom build, we recommend consulting your gunsmith to ensure a precise fit.

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🇺🇸 Why Buy from Mounts Plus

Mounts Plus is trusted by builders, hobbyists, and professionals who demand quality and service that stand behind every product. We stock only genuine, high-performance AK parts that pass our quality control inspections.

• Fast U.S. shipping

• Responsive customer service

• Expert support from real shooters

• 100% satisfaction guarantee

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🛒 Order Your 5.5mm AK Folding Stock Today

Upgrade your AK with confidence and precision. The 5.5mm AK stock is the perfect fusion of strength, performance, and heritage — designed to keep your rifle battle-ready for years to come.

Add to cart now and take your AK to the next level.

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❓ Frequently Asked Questions

Q: Will this fit my AK-47 or AK-74 rifle?
A: Yes, as long as your rifle uses a 5.5mm rear trunnion. If your trunnion is 4.5mm or fixed, you’ll need an adapter.

Q: Can this stock be folded to either side?
A: Most 5.5mm folding stocks fold to the left side of the rifle to clear optics and charging handles.

Q: Does it require permanent modification?
A: No — this stock installs directly into compatible rear trunnions without cutting or welding.

Q: What’s the difference between 4.5mm and 5.5mm AK stocks?
A: The number refers to the hinge pin diameter. 5.5mm stocks use a slightly larger hinge and are common on later-generation AK-74s and Saigas.

Q: Do you sell the stock adapter for non-folding receivers?
A: Yes, Mounts Plus carries adapters for both 4.5mm and 5.5mm trunnion conversions. Check our AK accessories section for details.

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