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Can someone show details of the product. usually most BCG 's list the BCG is made of. the bolt is it Carpenter 158 steel etc? also, is it MPI and HPT? — 1 Answer

by Gary K, from NH, United States Asked on January 27, 2023

Name Fostech AR-15 Stripped Carrier w/Gas Key (4.1)
As Low As $81.99 Save Up to 18%
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Answered by Ethan, Gear Expert, from IL, United States, on January 29, 2024

The Fostech AR-15 Stripped Carrier w/Gas Key specifications provided by the manufacturer are:
Material: 8620 Steel
Design: Heavy Profile M16 Style
(Preferred for most AR-15 Builds)
Gas Key Screws: Grade 8; Properly Torqued and Staked to Mil-Spec
Gas Key Material: 4130 Steel
Finish: BLACK NITRIDE
Weight: 11.6 Ounces

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