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Aero Upper Receiver + Toolcraft Nickel Boron 158 Bolt Carrier Group

Aero Upper + Toolcraft Nickel Boron BCG

MSRP $230.00
SALE PRICE: $159.95
Savings: $70.05


Stock Status :(Out of Stock)
Product Code: TOOAUTO-010-C158-APAR501603C

Add RCA Adjustable Gas Key?

Add Port Door & Forward Assist?

See "CHART A" tab below:

Engrave Your Upper?

See "CHART B" tab below:

Description CHART A CHART B

Aero Upper & Toolcraft NiB 158 BCG Combo

This combo set of an Aero Precision anodized black upper receiver and Toolcraft Nickel Boron bolt carrier group is the perfect way to save money without sacrificing quality. Forged from 7075-T6 aluminum, the stripped upper receiver has a durable, precision machined design that's lightweight and reliable. Pair that with a Nickel Boron bolt carrier group made from mil-spec carpenter No. 158® and 8620 steel, and you have an unbeatable combination. All Toolcraft BCG components are pre-polished, plated by UCT and post-polished for an unbelievable shine.

BCG features:

  • Mil-spec carpenter No. 158® steel (bolt)
  • 8620 tool steel (carrier)
  • Shot-peened, MPI bolt
  • Mil-spec extractor spring, black extractor insert & Viton O-ring
  • Tool steel extractor
  • Shrouded firing pin
  • Mil-spec 4130 steel gas key attached with Grade 8 hardware and properly staked
  • Caliber: .223 / 5.56 / 300 Blackout

Upper receiver features:

  • Anodized black finish
  • 7075-T6 aluminum
  • A3 flat top
  • Forged
  • M4 feedramps
  • T-marks

Add a plain or engraved port door + forward assist kit from the drop down menu.

Choose one of our upper engraving graphics from the drop down menu.

See reference "CHART A" and "CHART B" tabs above.

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