No. Under federal law, non-serialized parts like barrels (e.g., the NylAUG 16.5″ barrel), bolts, and build kits are unregulated components and ship straight to your door.

Federally, yes, as long as you are not prohibited from owning firearms.

Federal law does not require home builders to serialize a personally made firearm for private use.

No. Manufacturing firearms with the intent to distribute or sell requires a Federal Firearms License (FFL). Private builds must remain personal property. 

No. Under the First Amendment, sharing, downloading, or hosting open-source GunCAD data files is protected as free speech. However, a few states (like New Jersey) have enacted local laws attempting to restrict the digital distribution of these files.

No. On the vast majority of modular platforms, the ATF regulates only the lower receiver or the central housing frame containing the fire control group. Upper receivers, slides, and bolt assemblies are considered unregulated parts.

 No. On the vast majority of modular platforms, the ATF regulates only the lower receiver or the central housing frame containing the fire control group. Upper receivers, slides, and bolt assemblies are considered unregulated parts

No. Under the First Amendment, sharing, downloading, or hosting open-source GunCAD data files is protected as free speech. However, a few states (like New Jersey) have enacted local laws attempting to restrict the digital distribution of these files.

Yes. Orders are shipped in plain, unmarked boxes or standard carrier mailers to protect customer privacy and prevent package theft.

We prioritize user privacy and limit data retention to what is strictly necessary to fulfill the order. For secure support, we recommend communicating via encrypted channels like Signal or Telegram or web live chat.

We ship completely legal, unregulated components nationwide.

Standard PLA is too brittle. The community standard for high-strain 3D arms projects is PLA+ (Pro), Co-Polyester, or Glass/Carbon Fiber Reinforced Nylon (PA-CF) for maximum impact resistance.

Most specialized components, such as the KAK NylAUG barrel, are specifically engineered to interface flawlessly with both 3D-printed receivers and standard surplus parts kits (like original 20mm gas blocks).

Most modern aftermarket parts are designed for drop-in assembly. Specialized parts like our NylAUG barrels are pre-headspaced and pre-timed to eliminate the need for heavy machinery or a professional gunsmith.

Yes. To enhance customer privacy, we do accept decentralized cryptocurrencies (such as Bitcoin or Monero)

We give a 10% discount to customers who check out using cryptocurrency. Use the Coupon (PRC10)

Yes, packages can be shipped to any legally valid mailing address, including a P.O. Box or commercial mail drop.

No. You can fully check out as a guest. We do not require you to create a password or save a profile on our servers.

Standard phone logs leave clear digital footprints.
Signal offers peer-to-peer end-to-end encryption with no metadata storage, while Telegram allows for secure, pseudonymous outreach. Both keep our technical consultations entirely confidential.