ALG Defense AK High Energy Main Spring

Manufactured by ALG Defense, Inc.
SKU: 04-233
MPN: 04-233
Manufactured by ALG Defense, Inc.
6 Reviews

In Stock

Standard orders will ship out in 1 business days or less if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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The ALG Defense High Energy AK Mainspring is a high performance upgrade for your AK pattern rifle that offers a 25% increase in torque over factory main springs. This allows for increased reliability with even the worst mil-surp primers and reduced lock times! Fabricated from a single chrome silicon wire, right here in the United States.
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BrandALG Defense, Inc.
Manufacturer.ALG Defense, Inc.
TypeHammer Spring
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

6 reviews

  • 4 stars
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  • 2 stars
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Extra crispy

by -

Added this main spring not too long after installing the ALG ultimate defense trigger with lightning bow. It added a crispness to the trigger pull that is hard to explain but is %100 noticeable.

High strength

by -

Quality product, it has a high tension strength as advertised. It gives the trigger a crisper break than stock springs. Also, depending on the brand/type of AK it may cause the charging to stick a bit. It's a little sticky on zpap, ok on vepr.

Quality must have

by -

Very good tight spring. Must have for an a
<br>AK either as backup or a replacement. Watch for the "bite" though. Install with a rubberband or zip tie as this spring does not hold together like the typical AK trigger spring. Zero FTF with this. Solid hits. Strong lockup

Broke when arrived

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The spring showed up in a bubble mailer in 2 pieces.
<br>We are happy we were able to get this issue resolved per our conversation. Please let us know if there is anything else we may help you with.

Works great with Alg AKT


This spring really compliments my Alg AK trigger with more noticeable spring tension resulting a firm positive take up and reset.

ALG Defense AK, High Energy Trigger Spring

by -

I bought this ALG Defense trigger spring to replace a braided trigger spring on a SAR-1 AKM. The spring installed quickly and without problems. I did not find any issues at the range as the spring worked flawlessly. The spring is noticeably different from the foreign made braided springs, thus makes it easily recognizable as a 922r compliant part.