Need abit more power/reliability but not confident on building a gearbox? This is perfect for you! Already assembled gearbox set up to drop straight into a Gen 8 M4A1.
Also compatible with Gen 8 Scar V2, UMP45 but modifications are required for fitment.
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Gel blasters are toys only and are NOT weapons or firearms.
Stage 1 Gearbox Includes -
Still need more power? May we suggest this -