Handguard designed in TinkerCad for a custom Rapidfire I was putting together. This part is dependent on 3 other parts I was using:

Nerf Rapidstrike Stock Attachment Piece by Tungstenexe
https://www.thingiverse.com/thing:2776375

Nerf Rapidstrike Grip Heel by Tungstenexe
https://www.thingiverse.com/thing:2788109

Rapidstrike Flared Magwell by Flygonial
https://www.thingiverse.com/thing:2887256

I did not integrate any kind of easy attachment so the handguard was hot glued on the blaster. Though it would not be hard to simply split it in half and use TinkerCad to merge the part into both the attachment piece and grip heal.

The STL file is revision 3 of the item. Rev 2 is what is on my blaster, the back attachment point was to long and I had to cut it off to fit correctly. Rev 3 has a shorter back attachment so it should line up better.

All parts of this custom blaster:

Stock Attachment Piece - https://www.thingiverse.com/thing:2776375
Stock with Battery Compartment - https://www.thingiverse.com/thing:2926511
Grip Heel - https://www.thingiverse.com/thing:2788109
Flat Top Picatinny Rail - https://www.thingiverse.com/thing:3411860
Hera styled Frontgrip - https://www.thingiverse.com/thing:2905467
(Length scaled up because of tight fit and halves merged in slicer so no hardware was needed)
Extended18 Dart NERF Magazine - https://www.thingiverse.com/thing:1131004

Aftermarket parts:
Tactical Silencer Barrel Extension Attachment For Nerf MOD Modify Airsoft Toy (Sold on both Amazon and Ebay) though it can be printed from https://www.thingiverse.com/thing:2910111
WOLFBUSH 6X Scope Sight Kit from Amazon

Creality

Ender 3

Doesn't Matter

Yes

.2

20