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K'nex M16A4by War Hawk One
Working Knex M4 Carbine Model (not full scale, RBG)by Knex Guru
Knex- The top 10 highest rated knex 'ibles of 2009by Hiyadudez
K'nex M4A1 Carbineby Fartonia
Knex M4 Carbineby mahmel
Knex M4A1 Carbine Assault Rifleby TLF93
my new knex m4 carbineby dutchwarlord
Knex MP-605 SMG Carbineby beanieostrich
knex M-74by bluestripe
Knex M4A1 Carbine (virsion from Fartonia's)by M4A1DrumRoll
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