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Motor
Spring
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Rail system
Inner / Outer barrel
Receiver
Hand Grip
Stock
Flash Hider
Back-up Sight
Foregrip
Battery
LR300 Gas Tube
SKU :A&K-E016
MSRP :USD7.26
M4-CQB Outer Barrel
SKU :A&K-E014
MSRP :USD22.00
M4-RIS Outer Barrel
SKU :A&K-E013
MSRP :USD22.00
M7799 Outer Barrel
SKU :A&K-E011
MSRP :USD22.00
LR300-L Outer Barrel
SKU :A&K-E010
MSRP :USD25.74
SPR MOD1 Ooter Barrel
SKU :A&K-E009
MSRP :USD25.74
SR25 Outer Barrel
SKU :A&K-E008
MSRP :USD25.74
M16A3 Outer Barrel
SKU :A&K-E007
MSRP :USD22.00
CQB-02 Outer Barrel
SKU :A&K-E006
MSRP :USD14.74
CQB-03 Outer Barrel
SKU :A&K-E005
MSRP :USD14.74
CQB-01 Outer Barrel
SKU :A&K-E004
MSRP :USD14.74
CQB-04 Outer Barrel
SKU :A&K-E003
MSRP :USD14.74
M249 Completed Main Barrel Set
SKU :A&K-E002
MSRP :USD47.74
M249-MK2 Extend Barrel
SKU :A&K-E001
MSRP :USD22.00