Description
Save big on this Aero Slick Side Assembled Upper + Toolcraft Nickel Boron 158 BCG Combo!
Toolcraft Nickel Boron 158 MPI BCG:
This Nickel Boron 158 BCG from Toolcraft features an MPI bolt and M16 carrier, and comes with a lifetime warranty. Built to military specifications, it stays true to the Toolcraft name of quality, durability and best-in-industry. The bolt is made from mil-spec carpenter 158 steel, shot peened and magnetic particle inspected, while its carrier is made from 8620 tool steel. All components are pre-polished before being plated by UCT and then polished again for a high shine.
Mil-spec carpenter No. 158® steel (bolt)
8620 tool steel (carrier)
Mil-Spec extractor spring, black extractor insert, Viton O-ring
Tool steel extractor
Shrouded firing pin
Mil-Spec gas key (4130 steel) attached with Grade 8 hardware and properly staked
Caliber: .223 / 5.56 / 300 Blackout
Bolt is shot Peened and MPI
Toolcraft has all BCG components pre-polished before being plated by UCT and then post polished for an incredible shine
Aero Slick Side Assembled Upper Receiver:
Anodized - Black
AR-15
7075-T6 Aluminum
A3 Flat Top
Forged
M4 Feedramps
T-Marks
SKU#: TOOAUTO-010-C158-APAR610401A
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