The Israeli designed TAR-21 is one of the most insane bull pup rifles ever built. While it is an ideal primary weapon to use in both urban and close corridor combat, it also excels in mid range engagements as well.

Supplies

Below is an approximation for the parts needed to build 1 gun, 1 magazine, 1 pin, 5 bullets, and 1 sight:

Yellow connector: 162

White connector: 60

Gray connector: 83

White rod: 222

Little green rod: 509

Small (white rod length) blue flexi rod: 2

Blue spacer: 60

Gray spacer: 14

Red connector: 49

Female hinge connector: 22

Female ball socket: 13

Male hinge connector: 8

Small little black Y clip: 81

Green connector: 46

Blue clip: 52

Orange connector: 89

Double connector: 27

Blue rod: 30

Black rod end cap: 18

Tan clip: 16

Blue flexi rod: 6

Gray endless X rod: 6

Yellow rod: 4

Small little orange 3d connector: 1

Blue 3d connector: 9

Gray rod length flexi rod: 3

Male ball joint: 3

Long black rod: 3

Small gray wheel: 1

Small black wheel: 2

Small gray gear: 1

Micro small black rod: 3

Standard to mini connector: 3

Micro (2 way) purple con: 3

Micro (2 way) double orange con: 1

Micro clear spacer: 2

Micro gray spacer: 1

Micro gray rod: 1

Size 32 or 33 rubber band: 4

Size 117b rubber band: 2-3

Step 1: Instructional Video

Follow the tutorial to build a functioning replica of the TAR-21 assault rifle with your K'NEX pieces! Featuring a true bolt-action bull pup mech, true trigger, pre-loadable five round removable box mags, along with the super smooth barrel design, this gun can achieve ranges of over 30 feet when using a good pin & rubber-band set up.