HF AK4/AK74 Braided Main Spring (XAKMS) – UPC 859177004607
Upgrade the reliability and performance of your AK‑type rifle with the HF AK4/AK74 Braided Main Spring. Designed specifically for the AK4 and AK74 platforms, this high‑quality braided spring delivers consistent bolt carrier group (BCG) operation, smoother cycling, and extended service life. Whether you are a tactical professional, a competition shooter, or a dedicated enthusiast, this main spring is the perfect replacement or upgrade for your firearm.
Key Features & Benefits
- Precision‑Engineered Braided Design: The braided construction eliminates metal fatigue, providing a smoother and more reliable recoil spring action.
- Optimized for AK4 & AK74: Engineered to meet the exact specifications of the AK4 and AK74, ensuring perfect fit and function.
- Enhanced Durability: Resistant to corrosion and wear, this spring maintains its tension over thousands of cycles.
- Improved Cycling: Reduces bolt carrier lag and provides a cleaner, more consistent shot reset.
- Easy Installation: Direct bolt‑in replacement with no additional modifications required.
- OEM‑Quality Materials: Crafted from high‑grade steel with a heat‑treated finish for maximum strength.
Technical Specifications
| Item | Specification |
|---|
| Model | HF AK4/AK74 Braided Main Spring (XAKMS) |
| UPC | 859177004607 |
| Compatibility | AK4, AK74, AKS‑74U, and all rifles built on the AK‑type receiver |
| Material | High‑strength steel, braided construction |
| Length | 250 mm (9.84 in) |
| Spring Rate | ≈ 350 N·m⁻¹ |
| Finish | Black phosphate coating |
| Weight | ≈ 45 g (1.6 oz) |
Why Choose HF Braided Main Springs?
HF (Heritage Firearms) has been a trusted name in firearm components for decades. Their braided main springs are renowned for:
- Consistent performance in extreme climates – from arctic cold to desert heat.
- Reduced recoil impulse, improving follow‑up shot speed.
- Long‑term cost savings by minimizing the need for frequent replacements.
- Compatibility with aftermarket upgrades such as high‑rate gas pistons and enhanced bolt carriers.
Installation Guide
- Ensure the rifle is unloaded and the bolt carrier group is removed.
- Locate the existing main spring within the receiver.
- Carefully extract the old spring using a spring removal tool or a suitable pair of pliers.
- Insert the new HF braided main spring, making sure the ends sit flush against the receiver’s spring seats.
- Reassemble the bolt carrier group and perform a function test to verify smooth operation.
Customer Reviews
“Swapped the factory spring for the HF braided version and noticed a much smoother cycling. No more stick‑points during rapid fire.” – Mark T., Tactical Shooter
“Excellent build quality. The spring retained its tension after over 10,000 rounds in harsh conditions.” – Lisa K., Competition Shooter
FAQ
- Is this spring compatible with AK‑type rifles that have a milled receiver?
- Yes, the HF AK4/AK74 Braided Main Spring is fully compatible with both stamped and milled receivers.
- Do I need to replace the bolt carrier group when installing this spring?
- No, the spring is a direct replacement and works with the existing bolt carrier group.
- Can this spring be used with a high‑rate gas piston system?
- Absolutely – the spring’s consistent tension makes it ideal for high‑rate gas systems.
Upgrade to the HF AK4/AK74 Braided Main Spring (XAKMS) today and experience a smoother, more reliable shooting platform. Perfect for reloaders, armory technicians, and anyone looking to maintain peak performance on their AK‑type rifles.
