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The Heresy Design 7.62x39 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 7.62x39 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 7.62x39 while maintaining the precision and modularity of your platform.
Kit only does not come with Host gun
Additional Features:
5/8x24 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 7.62x39 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.
Magazine Capacity Restrictions
Atlantic Firearms follows all state regulations regarding the sale of high capacity magazines. Due to multiple states and cities now enforcing various magazine restrictions and more coming we will not ship magazines that are restricted in your area with firearms to the states listed below. If the mag that comes with the firearm is not legal in your state or city the magazine will be removed from the shipment. We do not offer custom magazine requests to swap out, ship to another state, refund, pinning of mag, substitutions, dealer approval or other. Hopefully we will see changes to these laws and violations to our second amendment rights. We apologize for this but we simply cannot accommodate each and every magazine request with over 30 different laws, regulations and restrictions impacting states, cities and local jurisdictions throughout the country. It is the customers responsibility to be informed of your local laws prior to completing your purchase. Atlantic Firearms is not responsible for any issues that may arise with magazines shipped to you or your FFL dealer that may not be legal in your area due to a change in current laws.
1. Magazines Capacity Restrictions as follows:
California: No magazines over 10 rounds
Colorado: No shotgun magazines over 8 rounds. No other magazines over 15 rounds. Local jurisdiction laws may vary.
Connecticut: No magazines over 10 rounds
Delaware: No magazines over 17 rounds
District of Columbia No magazines over 10 rounds
Hawaii: No magazines over 10 rounds that may fit a pistol
Illinois:
· No magazines over 15 rounds to Aurora, IL
· No magazines over 12 rounds to Chicago, IL
· No magazines over 16 rounds to Franklin Park, IL
· No magazines over 10 rounds to Oak Park, IL
· No magazines over 35 rounds to Riverdale, IL
Vermont: No magazines over 10 rounds for rifle, 15 for pistol
Maryland: No magazines over 10 rounds
Massachusetts: No magazines over 10 rounds
New Jersey: No magazines over 10 rounds
New York: No magazines over 10 rounds
Rhode Island: No magazines over 10 rounds
Washington: No magazines over 10 rounds
Magazine Restriction Exceptions
1. All law enforcement sales must be shipped to a department and no orders will be sent directly to a personal address. Law enforcement officers must provide both their credentials and a letterhead signed by their department's superior officer stating that the magazine will either be used in the execution of the L.E.O.'s duties, or off duty.
Important Information
It is your responsibility to be familiar with your current local gun laws BEFORE placing your order. You must talk to your FFL BEFORE you place your order, to make sure they will handle the transfer & legality of the firearm in your area. Please feel free to email us with questions you may have. By placing an order with Atlantic Firearms you are acknowledging and agreeing to all Terms and Conditions outlined in the Terms And Conditions section.