Rivalburn 3 (R3)


The Rivalburn 3 (R3) is a unique, inline magwell, Rival blaster. It has a sci-fi look, and good performance too.

Reinforced with U-Channel bars, pump-action and mag fed. Rival Balls & magazines sold separately.

Shown as Yellow
Shown as Red
Shown as Silver
Barrel Shroud
Grip Insert (+$6.00)
Iron Sights (+$4.00)
Rail Riser (+$10.00)
Rubber Grip Sleeve (+$10.00)
Aluminum Trigger (+$15.00)
Aluminum Sear (+$20.00)
U Channel Coloring (+$13.00)
Angled Foregrip
Pyrangle Foregrip (+$5.00)
Vertical Foregrip (+$5.00)
Railgasm (+$10.00)
RMAX+gasm (+$25.00)
Stampede (+$35.00)
Carbon Fiber Wrap (+$2.00)
Black Anodize
Red Anodize
Blue Anodize
Orange Anodize
Color configurator found here: U Caliburn Color Configurator
Product total
Options total
Grand total
Please double check your printed part color selection. Colors cannot be changed after checkout.


– Listing is for a fully assembled, tested, and most recent version of the Rivalburn 3 (R3) Caliburn blaster
– U channels run the length of the blaster on both sides making the platform extremely rigid
– Primary color applies to Coupler, Grip, Nameplates, and Pcap
– Secondary color applies to DoomS, Trelease, Krelease, Plunger, Sear, Trigger, RamBase, Endcap, EndCover, and Magfront
– Muzzle is orange by default
– Includes aluminum ramrod with o-ring notch
– Pumpaction grip includes bottom picatinny rail for various foregrips
– Compatible with Nerf brand and most aftermarket Rival magazines
– ______” overall length

Darts & Magazines: 
– Compatible with Rival (HIR) style ammo and most Rival magazines

Addons and Upgrades:
– Carbon Fiber Wrap is for style, but it is just a sticker. *Durability not guaranteed.*
– Black Screws instead of the default

To build your own: Hardware Kit option with upgrades

Rivalburn 3 (R3) Color Configurator: http://captainslug.com/nerf/caliburn/u/

Original design by captainslug. Used with permission.

Additional information

Weight 3 lbs
Dimensions 32 × 4.5 × 1.5 in


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