U Caliburn Hardware Kit

(1 customer review)


Contains all the hardware needed to assemble a U Caliburn (a design by captainslug).

Aluminum Trigger (+$15.00)
Aluminum Sear (+$20.00)
Aluminum Pcap Plate (+$15.00)
Railgasm Hardware (+$2.00)
Carbon Fiber Wrap (+$15.00)
Scar Hardware (+$8.00)
Rubber Grip Sleeve (+$10.00)
Product total
Options total
Grand total


– Contains all hardware needed to assemble a Nerf U-Series Caliburn, designed by captainslug on Thingiverse.
– Assembly instructions provided by captainslug: U Caliburn assembly instructions.
– Default barrel is 14” length 0.527″ ID barrel
– Compatible with Caliburn springs and Pro-series Turf springs
– Add-ons sold separately
– If ordered with 509 or 495 barrel, will include barrel adapter
– Kit includes aluminum ramcore with o-ring notch and Vanguard
– Pcap plate requires modified Pcap print available here
– You can purchase an assembled U Caliburn here

Optional Add-ons:
– Additional springs can be purchased here
– Railgasm
– SCAR Barrel
– Ported MuzzleBrake
– Aluminum internals
– Varying barrel types
– and more!

Access to files for printing your own parts available here: Print Files Download

**Design used with permission.

Additional information

Weight 2 lbs
Dimensions 28 × 3 × 3 in

K26, K25, 788, K31, 8kg (+$6), 10kg (+$6), 18.5kg (+$6)

Spacer Tubing

Black, White, Metal (+$12), Carbon Fiber (+$20)


Short Dart, Full-length Dart

1 review for U Caliburn Hardware Kit

  1. Allan Turner

    Ordered this kit for my son and I to build. He loves it. Operates better than expected. We had a couple of minor issues which were quickly resolved through customer service

Add a review

Your email address will not be published. Required fields are marked *

You may also like…