Phase 5 M16 / M4 CHROME LINED BLACK PHOSPHATE COMPLETE BOLT CARRIER GROUP
Phase 5 M16 / M4 CHROME LINED BLACK PHOSPHATE COMPLETE BOLT CARRIER GROUP

Phase 5 M16 / M4 CHROME LINED BLACK PHOSPHATE COMPLETE BOLT CARRIER GROUP

Part Number:BCG-M16
Your Price: $139.99
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Phase 5 M16 / M4 CHROME LINED BLACK PHOSPHATE COMPLETE BOLT CARRIER GROUP


Mil-Spec M16/M4 Heat treated and chrome lined carrier.


Assembled complete with cam pin, firing pin, bolt and gas key.

HPT/MPI tested Bolt.

Drop-in BCG, ready to shoot.

Finish: Standard black phosphate coating.


Bolt carrier group specifications-

-Mil-Spec 8620 tool steel Semi bolt carrier w/shrouded firing pin.

-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.

-Laser engraved with Phase 5 logo (visible through ejection port door opening).

-Mil-Spec tool steel carrier key.

-Carrier key has 5.3.1.2 MIL-STD-171 phosphate finish inside and out with 1.2.2.2 MIL-STD-171 hard chrome bore.

-Carrier key is attached with Grade 8 hardware and properly torqued 56 IN/LBS.

-Bolts are CNC machined from Carpenter No. 158®.

-Bolts have 5.3.1.2 MIL-STD-171 phosphate finish inside and out.

-All bolts are shot peened per the current Mil-Spec
to relieve metal strain

-All bolts (NOT JUST A SAMPLING) are Individually High Pressure Tested (HPT) and then Individually Magnetic Particle Inspected (MPI).

-Tool steel extractor, shot peened, 5.3.1.2 MIL-STD-171 phosphate finish, fitted with a Mil-Spec black extractor spring insert and Mil-Spec Viton o-ring to avoid most extraction problems.

-Mil-Spec firing pin with 1.2.2.2 MIL-STD-171 hard chrome finish.

-Mil-Spec cam pin with 5.3.1.2 MIL-STD-171 phosphate finish.

-Mil-Spec firing pin retaining pin with 5.3.1.2 MIL-STD-171 phosphate finish.

 

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