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Spikes Firearm Parts Bolt Carrier Group HPT/MPI 223 Rem (5.56 NATO) M-16/AR-15 Phosphate Steel [ST5B

Spikes Firearm Parts Bolt Carrier Group HPT/MPI 22
Spikes Firearm Parts Bolt Carrier Group HPT/MPI 22
Spikes Firearm Parts Bolt Carrier Group HPT/MPI 22
Spikes Firearm Parts Bolt Carrier Group HPT/MPI 22
Spikes Firearm Parts Bolt Carrier Group HPT/MPI 22
Spikes Firearm Parts Bolt Carrier Group HPT/MPI 22

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Spikes Firearm Parts Bolt Carrier Group HPT/MPI 223 Rem (5.56 NATO) M-16/AR-15 Phosphate Steel [ST5BG01]
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$120.29

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  • Model: ST5BG01
  • MPN: ST5BG01
  • UPC: 855319005495

The Spikes Tactical HPT/MPI M16 Bolt Carrier Group for 223 Remington/5.56 NATO features a Mil-Spec 8620 tool steel M16 bolt carrier w/shrouded firing pin. The carrier has 5.3.1.2 MIL-STD-171 phosphate finish inside and out with 1.2.2.2 MIL-STD-171 hard chrome bore. It is laser-engraved with ST Spider logo which is visable through ejection port door opening. The carrier key is attached with Grade 8 hardware and properly staked per the Mil-Spec. The bolts are CNC machined from Carpenter No. 158 and have 5.3.1.2 MIL-STD-171 phosphate finish inside and out. All bolts are shot peened per the current Mil-Spec and individually High Pressure Tested (HPT) and then Individually Magnetic Particle Inspected (MPI). The tool steel extractor is shot peened, has a 5.3.1.2 MIL-STD-171 phosphate finish, and is fitted with a Mil-Spec black extractor spring insert and Mil-Spec Viton o-ring. The Mil-Spec firing pin has a 1.2.2.2 MIL-STD-171 hard chrome finish. The Mil-Spec cam pin also has a 5.3.1.2 MIL-STD-171 phosphate finish. The Mil-Spec firing pin retaining pin has a 5.3.1.2 MIL-STD-171 phosphate finish.


MPN: ST5BG01
UPC: 000000000000
Brand: Uncategorized

Department: Firearm Parts » Bolt Carrier Group » HPT/MPI 223 Rem/5.56


Spikes Firearm Parts Bolt Carrier Group HPT/MPI 223 Rem (5.56 NATO) M-16/AR-15 Phosphate Steel [ST5BG01]

Type: Bolt Carrier Group
Model: M16/AR15
Size: 223 Remington/5.56 NATO
Material: Steel
Hammer Type: Black Phosphate
Application: Replacement

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