C4 Caliburn 4 Hardware Kit

(1 customer review)


Contains all the hardware needed to assemble a C4 (Caliburn 4). Prints not included.

Aluminum Trigger (+$15.00)
Aluminum Sear (+$20.00)
SCAR Hardware (+$8.00)
Rubber Grip Sleeve (+$10.00)
Aluminum Rambase (+$20.00)
Plunger Black Acetal (+$21.00)
Plunger White Acetal (+$21.00)
Plunger Aluminum (+$31.00)
Product total
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The Caliburn C4 is a homemade Nerf blaster originally designed by CaptainSlug. Pump action, mag-fed, variable fps. Darts, mags, and accessories sold separately.

Kit includes all hardware necessary to build a C4. Prints NOT included.

*C4 not compatible with K14 spring

Blaster Features:

  • More dry-fire safe than predecessor. Great for beginning nerfers.
  • Quick-access buttplate for easy spring swap to adjust power
  • Compatible with both half and standard (elite) dart types with passive magwell adapter
  • Increased durability & rigidity from the previous versions
  • Compatible with most standard picatinny attachments and Caliburn Lower Stock Spacers
  • All Flat bar construction
  • Tool-free passive talon/nstrike mag adapter
  • Faster spring-swaps
  • Optional air-brake plunger feature
  • Maintains the takedown feature
  • Optional o-ring collet muzzle for fast barrel swaps
  • Supports elastic and extension springs for accessories
  • Higher rigidity mixed-print-orientation grip assembly
  • Still compatible with Tooth-And-Nail and other aftermarket parts



  • Darts NOT included. Darts must be purchased separately.
  • Compatible with standard nerf brand darts, as well as short darts
  • Recommended darts: Worker Gen3 Darts


  • Compatible with most standard picatinny-compatible attachment
  • Compatible with all addons featured on the listing.


Additional information

Weight 2.0625 lbs
Dimensions 18 × 2 × 2 in

1 review for C4 Caliburn 4 Hardware Kit

  1. sean carey

    Great kit, went together easily with the assembly instructions. Took a little while to ship it to me but I am in Canada so I expected that.

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