2nd Degree Caliburn (Double Barrel Caliburn)


Pump-action, double magwell, mag fed, customizable. Variable performance based on spring and upgrade parts selected. Darts & magazines sold separately.

This is for a 2nd Degree Caliburn. For the C4, see this link.

Shown as Red
Shown as Yellow
Grip Insert (+$6.00)
Lower Stock Spacer
Custom Magwell Text (+$10.00)
Iron Sights (+$4.00)
Rail Riser (+$10.00)
Rubber Grip Sleeve (+$10.00)
Aluminum Trigger & Sear Set (+$60.00)
Angled Foregrip (+$10.00)
Modular Vertical Foregrip (+$15.00)
Pyrangle Foregrip (+$10.00)
Color configurator found here: Caliburn Color Configurator
Product total
Options total
Grand total
Please double check your printed part color selection. Colors cannot be changed after checkout.


This is for a 2nd Degree Caliburn. For the Caliburn 4 (C4), see this link.

The 2nd Degree Caliburn or 2nd Degreeburn is a homemade Nerf blaster originally designed by CaptainSlug from NerfHaven. Pump action, double magwells, mag-fed, variable FPS. Listing is for an assembled and tested 2nd Degree Caliburn blaster.

*All FPS numbers are base starting numbers with default set up and average seal.
*Metal and Carbon Fiber threaded rod covers increase rigidity.

Information on Caliburn Dart & Magazine Compatibility here

Information on Caliburn Upgrade Parts here

ELITE Version
– Compatible with Nerf magazines, knock-off brand magazines, and most magwell adapters.
– Comes with aluminum skinny-pusher ramrod core with o-ring notch
– Color configurator provided by CaptainSlug: http://captainslug.com/nerf/caliburn/e/

MEGA Variant
– Compatible with Nerf, BuzzBee, and 3D printed Mega magazines
– Comes with aluminum skinny-pusher ramrod core with o-ring notch.


Special thanks to Captainslug for the great design. Design used with his permission.

Additional information

Weight 4 lbs
Dimensions 31 × 4.5 × 5 in


There are no reviews yet.

Be the first to review “2nd Degree Caliburn (Double Barrel Caliburn)”

Your email address will not be published.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

You may also like…