INTERNAL UPGRADE
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Standard Cylinder Set For M4A1/RIS/SR16
Model#: MB-UCS-S-05 -
Standard Cylinder Set For XM177E2
Model#: MB-UCS-S-02 -
Standard Cylinder Set For SIG-551
Model#: MB-UCS-S-16 -
Standard Cylinder Set For SIG-550
Model#: MB-UCS-S-15
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Standard Cylinder Set For SIG-552
Model#: MB-UCS-S-17 -
Piston-7 Steel Half Teeth (3 Lubricant Grooves + Polycarbonate)
Model#: PISTON-01 -
60 Degree Normal Bucking x2 + Regular Spacer x2
Model#: MB-RH60 -
60 Degree Shark Hopup Bucking 50 pcs
Model#: SAH60B
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M150 SPRING - Ligh Blue Color Hard Coated
Model#: MB-SPR-M150 -
M140 SPRING - Purple Color Hard Coated
Model#: MB-SPR-M140 -
M130 SPRING - Ligh Blue Color Hard Coated
Model#: MB-SPR-M130 -
M120 SPRING - Ligh Blue Color Hard Coated
Model#: MB-SPR-M120
