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Pistol Caliber Upper Conversions

Pistol Caliber Upper Conversions

Carbine Length pistol caliber conversion uppers.

12 Item(s)

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  1. K9UR-FT: 16" 9mm Flat-top Upper Receiver K9UR-FT: 16" 9mm Flat-top Upper Receiver
    K9UR-FT: 16" 9mm Flat-top Upper Receiver
    K9UR-FT

    K9UR-FT: 16" 9mm Flat-top Upper Receiver

    Complete upper receiver assembly chambered in the wildly popular and affordable 9mm pistol cartridge. Standard forged 7076T6 aluminum Picatinny flat-top upper with one high capacity 30 round polymer magazine. Front sight and handguard options available. Learn More
  2. K9UR-OR: 9mm Optics Ready Upper Receiver, 16" K9UR-OR: 9mm Optics Ready Upper Receiver, 16"
  3. K40UR-OR: 40 S&W Optics Ready Upper Receiver, 16" K40UR-OR: 40 S&W Optics Ready Upper Receiver, 16"
  4. K45UR-OR: 45 ACP Optics Ready Upper Receiver, 16" K45UR-OR: 45 ACP Optics Ready Upper Receiver, 16"
  5. K10UR-FT: 16" 10mm Flat-top Upper K10UR-FT: 16" 10mm Flat-top Upper
    K10UR-FT: 16" 10mm Flat-top Upper
    K10ur-FT

    K10UR-FT: 16" 10mm Flat-top Upper

    Complete upper receiver assembly chambered in the wildly popular and affordable 10mm pistol cartridge. Standard forged 7076T6 aluminum Picatinny flat-top upper with one high capacity 18 round polymer magazine. Front sight and handguard options available.

    Learn More
    $721.50
  6. K40UR-FT: 16" 40 S&W Flat-top Upper Receiver K40UR-FT: 16" 40 S&W Flat-top Upper Receiver
    K40UR-FT: 16" 40 S&W Flat-top Upper Receiver
    K40UR-FT

    K40UR-FT: 16" 40 S&W Flat-top Upper Receiver

    Complete upper receiver assembly chambered in the wildly popular and affordable 40 S&W cartridge. Standard forged 7076T6 aluminum Picatinny flat-top upper with one high capacity 20 round polymer magazine. Front sight and handguard options available. Learn More
    $721.50
  7. K9UR: 16" 9mm A2 Upper Receiver K9UR: 16" 9mm A2 Upper Receiver
    K9UR: 16" 9mm A2 Upper Receiver
    K9UR

    K9UR: 16" 9mm A2 Upper Receiver

    Complete upper receiver assembly chambered in the wildly popular and affordable 9mm pistol cartridge. Standard forged 7076T6 aluminum A2 upper with one high capacity 30 round polymer magazine. Front sight and handguard options available.

    Don't forget extra magazine and spare parts!

    Learn More
  8. K45UR-FT: 45 ACP Flat-top Upper Receiver, 16" K45UR-FT: 45 ACP Flat-top Upper Receiver, 16"
    K45UR-FT: 45 ACP Flat-top Upper Receiver, 16"
    K45UR-FT

    K45UR-FT: 45 ACP Flat-top Upper Receiver, 16"

    Complete upper receiver assembly chambered in 45 ACP and includes one 18 round polymer magazine. Standard with Picatinny Falt-top upper receiver.

    Upper is 100% complete with bolt carrier assembly and charging handle. Ready to drop on any standard AR15 lower receiver. Simply attach the upper and swap out to the 45 ACP magazine, and you are ready to shoot. Swap back and forth between calibers in as little as 15 seconds!

    This caliber conversion does not require the changing of hammer, trigger, buffers or buffer spring. No need to add in a magazine well adapter or mag well plug either. Designed to work with any standard , unmodified AR15 lower with A2 or collapsible stocks.

    Other pistol calibers available: 9mm, 10mm and 40 S&W.

    Don't forget Extra magazines and/or spare pistol-cal parts.

    Learn More
  9. K10UR 10mm Upper Receiver, 16" bbl. K10UR 10mm Upper Receiver, 16" bbl.
    K10UR 10mm Upper Receiver, 16" bbl.
    K10UR

    K10UR 10mm Upper Receiver, 16" bbl.

    Complete upper receiver assembly manufactured in 10 mm caliber. Includes one 18 round polymer magazine. Standard with A2 upper receiver, but available with an optional picatinny flat-top upper (includes standard military A-frame front sight base), or Optics Ready flat-top by optioning in a picatinny gas block.

    Uppers are 100% complete and fully assembled with complete bolt-carrier assembly and forged charging handle. Ready to drop on any standard AR15 lower reciever. Simply attach the upper and swap out to the 10mm magazine, and you are ready to shoot. Swap back and forth between calibers in as little as 10 seconds!

    This caliber conversion DOES NOT require the changing of hammers, triggers, buffers or buffer springs. No need to add in a magazine well block adapter, additional ejector assembly or mag well plug either. Designed to work with any standard , unmodified AR15 lower with A2 or collapsible stocks.

    Other pistol calibers available: 9mm, 45 ACP and 40 S&W.

    Learn More
    $721.50
  10. K45UR: 45 ACP Upper Receiver, 16" K45UR: 45 ACP Upper Receiver, 16"
    K45UR: 45 ACP Upper Receiver, 16"
    K45-UR

    K45UR: 45 ACP Upper Receiver, 16"

    Complete upper receiver assembly manufactured for 45 ACP and includes one 18 round polymer magazine. Standard with A2 upper receiver, but available with an optional picatinny flat-top upper.

    Upper is 100% complete with bolt carrier assembly and charging handle. Ready to drop on any standard AR15 lower receiver. Simply attach the upper and swap out to the 45 ACP magazine, and you are ready to shoot. Swap back and forth between calibers in as little as 15 seconds!

    This caliber conversion does not require the changing of hammer, trigger, buffers or buffer spring. No need to add in a magazine well adapter or mag well plug either. Designed to work with any standard , unmodified AR15 lower with A2 or collapsible stocks.

    Other pistol calibers available: 9mm, 10mm and 40 S&W.

    Learn More
  11. K40UR: 16in. 40 S&W Upper Receiver Conversion Unit K40UR: 16in. 40 S&W Upper Receiver Conversion Unit
    K40UR: 16in. 40 S&W Upper Receiver Conversion Unit
    K40-UR

    K40UR: 16in. 40 S&W Upper Receiver Conversion Unit

    Complete upper receiver assembly manufactured for 40 S&W and includes one 20 round polymer magazine. Learn More
    $721.50
  12. K10UR-OR: 10mm Optics Ready Upper Receiver, 16" K10UR-OR: 10mm Optics Ready Upper Receiver, 16"

12 Item(s)

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