This polymer replacement part is displayed as part number 2 in the K120 and K400 magazine diagrams, and is the plastic piece that keeps the BBs retained in the magazine. Please note that these will NOT fit the K120c “cutoff” magazine, only the standard K120 midcap and the K400 highcap magazines.

Weight .1 lbs
Dimensions .3 × .3 × .3 in

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