EXTERNAL UPGRADE
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Quicksilver Toy Silencer and Aluminum Tube (Matte Silver)
Model#: Quicksilver-MS -
Quicksilver Toy Silencer and Aluminum Tube (Shiny Silver)
Model#: Quicksilver-Silver -
M4 CQB Outer Barrel
Model#: MB-OB-M4-CQB -
M4 A1 Outer Barrel
Model#: Barrel-02
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M16A2 / A4 Outer Barrel
Model#: Barrel-03 -
M733 Outer Barrel
Model#: Barrel-04 -
Dissipator M16 A2/ A4 Outer Barrel
Model#: MB-OB-DP03-A2N4 -
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Top Rail Gas Block
Model#: MB-GB-RAIL-1 -
4 Sides Rails Gas Block
Model#: MB-GB-RAIL-4
