Welcome to the support hub.
Here, you’ll find all the essential resources to maximize your experience with our products.
Access our detailed FAQs for quick solutions, review our warranty information for peace of mind, consult our manuals and instructions for expert setup and operation, and utilize our dealer locator to find the nearest authorized retailer.
We’re committed to providing you with the support you need, whenever you need it.
Frequently Asked Questions
General Questions
Where can I sign up to receive your emails?
If you’d like to get exclusive updates, product announcements, and more, please sign up here.
What are your hours of business?
We accept calls on our business line (208-998-0192) monday through thursday from 9:00am-5:00pm, and friday from 9:00am-3:00pm.
What type of product warranty do you offer?
We offer a limited manufacturer’s warranty for the lifetime of the product. You can review our warranty statement here.
Do you have downloadable product manuals for products?
Yes! You can find all manuals and instructions here.
Where are you based out of?
Heresy design® is based out of Coeur d’Alene, Idaho.
Do you offer tours of your facility?
We would, but our guard cats will not allow us.
What is your return policy?
At the end of the day, our company policy is to do the right thing. If you have a problem, we want to hear about it, and we want to make it right. Please review our terms and conditions page here.
Product Line Questions
Are you only offering products compatible with the Steyr® AUG®?
The conversion kits and accessories for the Steyr® AUG® A3 M1 are just our first products on the market. We are currently prototyping additional products for a variety of platforms and uses. We will be releasing these products in 2024. Please sign up for our email list to be notified when we release new products.
Do you have any plans for additional caliber conversion kits such as 7.62×39, 5.45 or 22lr?
If the volume from our current product offerings continues to be consistent, we will add 7.62×39 to the lineup. At this time, that is the only other caliber we are considering for this platform.
What features do your 5.56 barrels have when compared to factory barrels?
Our system was designed to work better with suppressors. We started from scratch and focused primarily on this. Due to our delayed venting system, you can expect a reduction of roughly 4db at the shooters ear when compared to a factory barrel with the same configuration.
Do you offer the rail system or individual rails as a standalone item?
No- the rail sections screw directly to our gas block. The factory gas block does not have the mounting surfaces for our rail system, so they are incompatible.
Will you offer any shorter barrel lengths in any of the calibers?
At this time, we do not plan on releasing any additional barrel lengths past what is listed on our website. While the 9mm conversion kit is not limited by the gas block location, we do not plan to release a shorter version.
Are your barrels concentrically threaded?
Yes, all our barrels are designed to work with suppressors and the threads should be concentric to the bore.
Upon visual inspection, the .300blk conversion kit may look off center. This is due to the 1/2×28 to 5/8×24 adapter. If you believe you have an issue and are not able to confirm alignment, please contact us immediately and we will start a warranty RMA to get the item returned to us so we can confirm and get you back to shooting as quick as possible.
What type of product warranty do you offer?
Heresy Design Inc. warrants that the enclosed product was originally manufactured free of defects in material, workmanship, and mechanical function. For the lifetime of the product, Heresy Design Inc. agrees to correct any manufacturer defects via repair, adjustment, or replacement with the same or comparable quality components. This limited warranty is null and void if the product has been misused, damaged, fired with handloaded, reloaded, or improper ammunition, fired with an obstruction in the barrel, or if unauthorized alteration/repair has been performed.
Our company policy is to do the right thing. If you have a problem, we want to hear about it, and we want to make it right. That’s our commitment to you as our customer.
Order Questions
Do you only ship to FFLs?
Since none of our current products are serialized, we ship direct to customers. We do not ship to po boxes. If you prefer to buy from your local gun shop, please find your closest dealer using our dealer locator page.
Which states do you ship to?
It is imperative that you research your state’s laws to ensure compliance. Generally, our products can be shipped unmodified to all states except for the following:
- California
- Connecticut
- Delaware
- District of columbia*
- Hawaii*
- Illinois*
- Massachusetts
- New jersey
- New york
- Vermont*
What is your return policy?
At the end of the day, our company policy is to do the right thing. If you have a problem, we want to hear about it, and we want to make it right. Please review our terms and conditions page here.
Do you offer a discount for Law Enforcement or Military?
Yes, we are proud to offer a discount to law enforcement, first responders, and military personnel- both active and retired.
Please fill out the form below to apply for your discount.
Technical Questions
What type of magazines and ammunition do you recommend?
We conduct factory testing and guarantee our products’ proper function with the use of SAAMI spec ammunition. We don’t recommend the use of reloaded ammo from your crazy uncle.
Will the .300BLK conversion kit run with subsonic ammunition and a flow through suppressor?
Our conversion kit does not require a suppressor to function with most brands of subsonic ammunition. If you are using a flow through suppressor, or suppressor with very little back pressure, you may need to adjust the gas settings for your setup.
We have a variety of suppressors and ammunition in-house that we test our kits with to ensure maximum reliability.
What is the recommended maintenance schedule for the .300BLK conversion kit?
Because our gas port goes down the barrel, it is closer to the chamber and better prevents carbon buildup in the gas channel. We have not found a significant amount of fouling, even after several thousand rounds through our conversion kits used for r&d purposes. Please note that the gas channel does not require cleaning for the system to function.
We do recommend regularly checking your gas adjustment system. From the factory, the gas adjustment knob can be difficult to manipulate and may require the use of pliers to adjust the first few times/until broken in. Once broken in, we recommend that you continue to check this and clean as needed. Suppressor and ammunition type can impact this.
Do you have any suppressor or ammunition recommendations?
Our 5.56 and .300BLK gas systems were designed to be adjustable for optimal performance with any suppressor.
The .300BLK system was designed to cycle with subsonic ammo without a suppressor. The system does not require back pressure from the suppressor to cycle, so even suppressors that claim zero backpressure should run without issue.
The only ammo you might have to adjust is .300BLK subsonic. Some subsonic ammo has shown to be problematic due to the burn rate of the power used. Stryker subsonic is the only type that causes cycling issues from our in-house testing.
What features do your 5.56 barrels have when compared to factory barrels?
Our system was designed to work better with suppressors. We started from scratch and focused primarily on this. Due to our delayed venting system, you can expect a reduction of roughly 4db at the shooters ear when compared to a factory barrel with the same configuration.
What type of cleaning or maintenance is required?
To clean your conversion kit, simply remove the gas adjustment knob and piston components. Clean the piston and rifle bore as you normally would, then reassemble. We do recommend following the preventative maintenance and other instructions that you received with the factory firearm. Our maintenance instructions are solely for the heresy design components.
Do you have downloadable product manuals for products?
Yes! You can find all manuals and instructions here.
How do I remove the muzzle device that shipped with my conversion kit?
The 5.56 and .300blk conversion kit muzzle devices are under tension from the crush washer. You can find basic removal instructions from silencer central here.
The 9mm conversion kit barrel has a machined-in 3-lug suppressor mount that cannot be removed. In front of the 3-lug suppressor mount, the barrel is threaded 1/2×28 and has a thread protector over it. Simply turn the protector to remove it.
Are your barrels concentrically threaded?
Yes, all our barrels are designed to work with suppressors and the threads should be concentric to the bore.
Upon visual inspection, the .300blk conversion kit may look off center. This is due to the 1/2×28 to 5/8×24 adapter. If you believe you have an issue and are not able to confirm alignment, please contact us immediately and we will start a warranty RMA to get the item returned to us so we can confirm and get you back to shooting as quick as possible.
What type of product warranty do you offer?
Heresy Design Inc. warrants that the enclosed product was originally manufactured free of defects in material, workmanship, and mechanical function. For the lifetime of the product, Heresy Design Inc. agrees to correct any manufacturer defects via repair, adjustment, or replacement with the same or comparable quality components. This limited warranty is null and void if the product has been misused, damaged, fired with handloaded, reloaded, or improper ammunition, fired with an obstruction in the barrel, or if unauthorized alteration/repair has been performed.
Our company policy is to do the right thing. If you have a problem, we want to hear about it, and we want to make it right. That’s our commitment to you as our customer.
Warranty
Warranty Statement
Heresy Design warrants that the enclosed product was originally manufactured free of defects in material, workmanship, and mechanical function. For the lifetime of the product, Heresy Design Inc. agrees to correct any manufacturer defects via repair, adjustment, or replacement with the same or comparable quality components. This limited warranty is null and void if the product has been misused, damaged, fired with handloaded, reloaded, or improper ammunition, fired with an obstruction in the barrel, or if unauthorized alteration/repair has been performed.
Our company policy is to do the right thing. If you have a problem, we want to hear about it, and we want to make it right. That’s our commitment to you as our customer.
Product Return Requirements
Please review the requirements below for product returns:
- Please use the RMA form to contact our warranty department and create an RMA prior to shipping items.
- Product must be in new condition with original packaging and complete with all components.
- Product must be returned in a protective box.
- A full refund including shipping will be issued if the return resulted from our error. Otherwise, we will deduct the shipping costs (both original and return) from your refund.
- Refunds for items purchased directly from Heresy Design® will be returned to the original purchase method if within 30-days of your purchase.
- If 30 days have passed since your purchase, an account credit will be issued.
- Returns on items purchased from a dealer/not directly through us must go through the original place of purchase.
- Please provide a copy of the receipt or sales order number to expedite the process.
- We reserve the right to modify these requirements at any time.
By placing an order, you are agreeing to these terms. If you decide to cancel your order, we will try to catch it before it leaves, but if your product has shipped, you will be responsible for shipping costs incurred.
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