The Zoom and Doom kit I ordered showed up super early. Now my Nailbiter is complete haha : r/Nerf
Nerf Zombiestrike Nailbiter. Looks to be double action like the Voidcastor with a clip that I would assume ratchets up with every shot. Credits to Alpaca XJ : r/Nerf
Nerf Nailbiter Mod Guide - YouTube
Nerf Nailbiter | FUN Combos for 2019 - YouTube
Blaster Mod of the Week: The Nailbiter Makita - blasterparts.com
NERF ZOMBIE STRIKE NAILBITER REVIEW - THE NAILGUN IS HERE! | Walcom S7 - YouTube
Nailbiter internals : r/Nerf
150 FPS Nailbiter! : r/Nerf
NERF Nailbiter Mod Guide (Internals, Spring Upgrade) | Walcom S7 - YouTube