The ALG Defense AK High Energy Main Spring (brand part no. 04-233-F) is a performance replacement mainspring for AK47 and AK74 platform rifles. ALG fabricates it as a Chrome Silicon single-wire spring built to ASTM A401 specifications, the same standard used for demanding automotive and industrial spring applications. Compared to a standard factory mainspring, it develops 25 percent more torque, which lowers lock time and increases the consistency of primer ignition shot to shot. For an AK owner chasing more reliable ignition, especially with harder primers or a lighter hammer, this spring is a direct, drop-in upgrade over the factory part.

Key Specifications

• Fits AK47 and AK74 platform rifles.
• Built as a Chrome Silicon single-wire spring.
• Fabricated to ASTM A401 specifications.
• Develops 25 percent more torque than a standard factory mainspring.
• Lowers lock time for a faster ignition sequence.
• Increases consistency of primer ignition shot to shot.

Frequently Asked Questions

What does this spring improve? It develops 25 percent more torque than a factory mainspring, which lowers lock time and improves primer ignition consistency.

What platforms does it fit? AK47 and AK74 platform rifles.

Buy the ALG Defense AK High Energy Main Spring

Order the ALG Defense AK High Energy Main Spring from our Lubbock, Texas gun shop and tighten up ignition consistency on your AK. It is a direct-fit part among our AK parts. Reserve yours through our Lubbock, TX gun shop and we will get it on its way as soon as it’s ready to ship.