• Compatible with Nerf N-Strike Elite Delta Trooper.
• Change the original pump structure and change it to a short dart pump, which is more precise, faster and farther than Nerf Elite darts bombs.
• Made of metal, very strong and the imported piano wire made spring has longer service life and higher strength.
• This product's modification requires more professional disassembly ability, please refer to the picture tutorial for spring replacement. (Suitable for people over 14-year-old.)
• Contact us freely if you got any question.

Contains details:

Putter*1

Ballistic *1

Spring*1

Accessories*1 package