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Most orders are taking up to 5-7 business days after mailing labels are created to get picked up. Thank you for your patience! 

AEA Arms

An all-around excellent firearm.

I've put over 1k rounds through this in the past two months. It has held up flawlessly and I have not had one failure. It's extremely controllable, reliable, lightweight, and fun! The adjustable gas block works great as well. I wasn't expecting such a cool backpack to come with my purchase either. All around excellent firearm and purchase!

Thomas P. -  Perun X16-105-Pistol

"...letting loose is where the Perun really shines. It's an amazingly soft shooter with very low felt recoil."
"The gun ran perfectly suppressed and unsuppressed on the same gas settings. In fact, we didn't experience any malfunctions or issues, even while purposely running completely dry."

Steven K. - Recoil Magazine

Being new to night vision I had questions, and AEA was able to work with me to get exactly what I was looking for. The customer service was great. Alex whom I spoke with several times was very helpful in questions for shipping. All around I feel this is a good trusting company to make these big purchases without any worry of getting the runaround. 

Justin G. - BNVD1431MKII


Perun X17-Builder's Kit - C-Frame Upper Only

$1 199.00
Stripped Upper Only for the AR10 calibers.
In stock
Product Details
Brand: Tinck Arms


**Very important to know that by selecting this option, the users agree that AEA, Tinck, and all other supplying partners are NOT responsible for any damage, loss, injury, or death as a result of the users modifying the lower receivers themselves! As according to Federal Law, users making their own lowers must not sell or distribute such lowers unless they are licensed FFL manufacturers**

Build your own customized Perun X17 and combine the best of the DI and the Piston worlds.

The X17-Builder's Kit does not include the serialized Lower. CAD/PDF drawings are available to show how an LR308 lower can be modified to work with the X17 upper. PDF drawing link here,

Modified KAK Industry lowers are available for sale by BAD Attitude Department - Contact

This is the shorter top rail section, the C-Frame version, which allows different handguard length options.

Handguards available for the kit are,

- 9.5" handguards for 11" or longer barrels

- 10.5" handguards for 12.5" or longer barrels

- 11.5" handguards for 13.5" or longer barrels

- 13.5" handguards for 16" or longer barrels

When ordering, select in the options the desired handguard length.

To complete this firearm, the following will be needed and are not included,

  1. AR10 Barrel
  2. AR Gas block and gas tube (slight modification will be required)
  3. AR10 Complete bolt and firing pin
  4. Retaining pin (AR15 versions fit better)
  5. AR15/10 Trigger group
  6. AR10/LR308 Lower parts kit and grip (trigger guard, buffer springs, buffer, buffer pin are not needed). Some bolt release may not hold bolt back until after break-in period.
  7. Modified LR308 lower
  8. Accessories - Stock, optics, sights, magazines, etc.

Note that this kit includes a serialized factory-modified and billet lower receiver. Purchases of the Builder's Kit are the same as purchasing a firearm, where a local FFL dealer will have to submit their information and the kit will be sent to them.

Users can add stocks or braces to the 1913 Picatinny rail back-plate or add to the purchase a compatible stock. Remember to review and adhere to Federal and Local regulations as you plan your build.

*For California, Stocks cannot be added to this product. Please check local laws and regulations. No magazines are included. We reserve the right to sell or not to sell to any particular person or state.

Important note about our photos
While we make every effort to ensure that our product photos are accurate, manufacturers occasionally change the design of components such as triggers, sights, or magazines without notice. Also, modifications to the firearm or component may be required in order to meet specific state compliance requirements. While we make every effort to accurately describe and illustrate the item you are going to receive, there may be visual differences in various components that do not affect functionality. Some pictures may have some accessories or items for illustration only and may not be included in the sale of the product.

Federal law requires that you be 21 years of age or older to purchase a handgun, frame, or receiver. To purchase a shotgun or rifle, you must be 18 years of age or older. 18 U.S.C. Section 922(b)(1).

As required by federal law, this item may only be shipped to a dealer with a valid Federal Firearms License. During checkout, you will need to provide the name, address, phone number, and email of your local FFL. Your FFL will need to email us ( their valid FFL and SOT (if NFA item) before your order can be processed.

For SALES OUTSIDE OF THE USA, please contact us first at

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