Convert your Gen-3 KRISS Vector CRB into a factory-spec Gen-3 SBR.

Send your Vector to our facility and our certified KRISS gunsmiths will complete a factory Gen-3 barrel conversion using factory parts and assembly,

• Full inspection & disassembly — complete teardown and inspection of your Gen-3 Vector CRB.
• G3 components (installed):
  
  • G3 M-LOK Handguard
  • 5.5in threaded barrel. Barrel threading:
    
    • 9x19: 1/2 x 28 RH
    • 45ACP: .578x28 RH
    • 10MM: 9/16x24 RH
• Factory reassembly, testing & QA — full function checks and final quality inspection prior to return.
• Round-trip shipping included — shipment from you to our factory and return delivery back to you are covered in the service price.
• Factory warranty extension — adds 1 year of factory-backed warranty from the date of conversion.

All promotions, discounts, and coupon codes are explicitly excluded from conversion services. Promotional offers do not apply to Gen-3 conversions and cannot be combined with this service.

• This service applies only to Gen-3 Vector CRB models
• Not a DIY kit — the firearm must be shipped to KRISS USA for conversion by our certified gunsmiths.
• Lead time: Please allow approx. 2–3 weeksfor conversion and processing from our receipt of the firearm (subject to parts availability).
• Compliance: All transfers and returns will be handled in full compliance with federal and state firearm laws.
• The converted firearm will be returned to the original return address on file or to the FFL of your choice
• Once order is placed, our customer service team will follow up to organize the transfer of your firearm.

Have questions or need shipping instructions? Contact our Customer Service Team at support@kriss-usa.com