Aero Upper Receiver + Toolcraft Phosphate 158 Bolt Carrier Group Save big on this Aero Stripped Upper + Toolcraft Phosphate 158 BCG Combo!





Toolcraft Phosphate 158 MPI BCG:



This Toolcraft MPI inspected 158 Phosphate BCG comes with a lifetime warranty and is perfect for any AR15, M4 or M16 Build. Toolcraft carriers and bolts are build to military specifications, also known as "Mil-Spec" and they are known throughout the industry as some of the best.



Toolcraft Bolt Carrier Groups come with a lifetime warranty!



Mil-spec carpenter No. 158® steel (bolt)

Bolt is shot Peened and MPI

8620 Tool Steel (Carrier)

Chrome Lined Carrier & Gas key

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



Aero Stripped M4 Upper Receiver:



Anodized - Black

AR-15

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.



