PS90 SBR Conversion Service – Professional Barrel Installation & ATF-Compliant Engraving

FN Specialties: The Nation’s #1 PS90 Conversion Service

FN Specialties is proud to be the nation’s leading provider of PS90 SBR conversions, trusted by builders, collectors, and professionals across the country. Our PS90 SBR Conversion Service offers everything you need to complete a compliant, high-quality short-barreled rifle conversion—with precision barrel installation and ATF-compliant laser engraving performed in-house by our expert PS90 gunsmiths

⚠️ All components must be purchased directly from FN Specialties. We do not install customer-supplied barrels, muzzle devices, or other third-party parts.

What’s Included:

• Removal of the factory 16" barrel
• Installation of a 10.4" short barrel from FN Specialties
• Timing and installation of the muzzle device (if applicable)
• ATF-compliant laser engraving of your:
  • Name (or Trust/LLC Name)
  • City
  • State
  (Engraving will match the information on your approved Form 1)
• All parts removed during the conversion, including your original 16" barrel and factory shroud, will be returned to you intact for future use whenever possible. In rare cases, irreversible damage to the original barrel and/or shroud may occur during disassembly.

ATF Compliance Required Before Shipping

Do not send your receiver until your ATF Form 1 has been approved and your tax stamp has been issued. Installing a short barrel without prior approval is a federal offense.

Shipping Instructions:

1. Ship Only the Receiver
   Remove all accessories, optics, and non-essential parts before shipping. Receiver must be in good condition.
2. Include the Following in Your Package:
   • A printed invoice from your FN Specialties order
   • A copy of your approved ATF Form 1 with the affixed tax stamp
   • A copy of your driver’s license (for individuals)
   • A copy of your FFL (for dealers)
3. Address Verification Policy:
   For individual customers, the name and address on all of the following must match exactly:
   • Shipping label
   • ATF Form 1 with tax stamp
   • Driver’s license or other government-issued ID

   If any discrepancies exist, the item must be shipped to and from a licensed FFL. We cannot accept mismatched documentation for individual shipments.

4. Pack Carefully & Ship with Signature Required:
   • Use ample bubble wrap and a sturdy box
   • Ship via FedEx, USPS, or UPS with signature confirmation
   • Consider adding insurance—FN Specialties is not responsible for transit damage

Ship To:
National Firearm Sales Inc | FNspecialties.com
936 Clint Moore Rd
Boca Raton, FL 33487

Important Notes:

• Installation may require damaging or destroying the original factory barrel or barrel shroud
• All parts must be purchased directly from FN Specialties
• Incorrect, incomplete, or missing documentation will delay your service

Why FN Specialties?

• The Nation’s #1 PS90 Conversion Service
• Licensed 07/02 Manufacturer for full NFA compliance
• Expert Barrel Installation with platform-specific precision
• ATF-Compliant Laser Engraving that matches your Form 1
• Trusted by PS90 Owners Nationwide

Start Your PS90 SBR Conversion Today

Once your tax stamp is approved, order the PS90 SBR Conversion Service from FN Specialties and send in your receiver. We’ll handle the hard part—ensuring your PS90 is properly configured, professionally engraved, and fully compliant.

Need help with your ATF Form 1? Click here for our step-by-step PS90 SBR guide.

Need a Pre-Manufactured PS90 SBR Instead?

For enthusiasts, dealers, and law enforcement agencies looking to purchase a complete, pre-manufactured PS90 SBR built by our licensed team? please visit: PS90 SBR – Built by Armory of Kings