FailZero
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Fz Lightweight Bolt Carrier Group
FailZero
$227.50This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent...$227.50 -
Fz Exo Bolt Assembly
FailZero
$98.19This fully assembled and NiB coated (5.56/.223) bolt assembly is compatible with most mil spec AR15" M16" M4 Carriers. EXO Nickel Boron provides permanent dry lubricity; increased wear and corrosion...$98.19 -
Fz 6.8spc Bcg No Hammer Nib
FailZero
$177.65This 6.8 SPC Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6.8 SPC. All critical parts are coated with EXO Nickel Boron technology...$177.65 -
Fz 9mm Bcg No Hammer
FailZero
$170.36 - $212.40This 9mm AR Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most 9mm AR platform rifles and pistols. The FailZero 9mm BCG is compatible with both lowers designated for Glock or...$170.36 - $212.40 -
Fz Basic Semi Kit Bolt & Hammer
FailZero
$177.65This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent...$177.65 -
Fz M16 Bolt Carrier Group
FailZero
$148.50This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16" M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides...$148.50 -
Fz 7.62x39 Bcg No Hammer Nib
FailZero
$177.65This 7.62x39 Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil-spec upper receivers chambered in 7.62x39. All critical parts are coated with EXO Nickel Boron technology...$177.65 -
Fz M16/m4 Bcg No Hammer
FailZero
$163.08This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16" M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that...$163.08 -
Fz 458 Socom Bcg No Hammer Nib
FailZero
$177.65This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec .458 SOCOM Upper Receivers. All critical parts are coated with EXO Nickel Boron technology that provides...$177.65 -
Fz 450 Bushmaster No Hammer Nib
FailZero
$177.65This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec .450 Bushmaster Upper Receivers. All critical parts are coated with EXO Nickel Boron technology that provides...$177.65 -
Fz Ar15 Bolt Carrier Group
FailZero
$148.50This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent...$148.50 -
Fz M16/m4 Bolt Carrier Group
FailZero
$177.65This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16" M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides...$177.65