7.62×39 Conversion Kit Steyr Aug NATO – Heresy Design
- 7.62×39 Conversion Kit Steyr Aug
- SKU: HB16C
- UPC: 850055721050
- Caliber: 7.62×39
- Barrel Length: 16.3”
- Barrel Material: 41V50
- Barrel Finish: Isonite
- Rifling Twist: 1:8
- Thread Pitch: 5/8×24
- Muzzle Device: .30 A2 Flash Hider
- Overall Length: 17.625”
- Weight: 2 lb. 11.6 oz.
- Kit only does not come with Host gun
- Only works in the NATO AUG series
The Heresy Design 7.62×39 Conversion Kit transforms your Steyr® AUG® A3 M1/M2 NATO rifle into a powerhouse, bringing the legendary 7.62x39mm round—famed for its reliability in the AK-47 platform—into the modern AUG system.
Designed for seamless integration, this kit features a quick-change barrel system and a 3-setting adjustable gas system, allowing for smooth caliber swaps and optimized performance, whether shooting suppressed or using subsonic ammunition. With minimal gas blowback, it ensures a cleaner and more reliable shooting experience.
The kit is compatible with readily available 7.62×39 AR-15 magazines and includes:
Barrel Assembly
Complete Bolt
Enhanced Magazine Latch
Dura Mag 30 round magazine
Upgrade your AUG with the stopping power of 7.62×39 while maintaining the precision and modularity of your platform.
Kit only does not come with Host gun
Additional Features:
5/8×24 Threaded Barrel
Compatible with NATO Stocks
Easy Install without Modification
Sleeved AK47 Length Gas System for Reliable Operation
Suppressor Ready 3-Setting Adjustable Gas System
Anodized Aluminum Quad Rails with Heat Isolators
Isonite coated wear parts
Limited Lifetime Warranty
AUG Compatible 7.62×39 Bolt Assembly
Ready to install
Uses AR15 wear components
Machined using hardened 9310 material
Enhanced Mag Latch
Easy to install with slave pin included
Eliminates magazine tilt for consistent feeding
Worked with all types of AR15 compatible magazines
Billet machined from 6061-T6 aluminum
17-4 roller bearing
Type 3 mil spec hard anodizing
Please Note : It is recommended to use new quality AR15 7.62X39 magazines for proper function. Out of spec or worn mags may lead to function issues and are not covered under warranty. New C Products or Dura Mags are suggested for optimal performance.




