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Q&A for Fostech AR-15 Complete Bolt Carrier Group (BCG) — 25 Questions & 24 Answers

Name Fostech AR-15 Complete Bolt Carrier Group (BCG) (4.1)
As Low As $136.99 Save Up to 15%
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Q
Eric, guest, from TN, United States, asked on November 12, 2020

Will this work with a 762x39 for an AR-15 upper

A
Answered by Richard, guest, from WV, United States, on February 06, 2021

The bolt will not obviously but, the carrier will work if you swap the bolt out with a 7.62x39 bolt.

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Q
Mike, guest, from MO, United States, asked on March 08, 2024

Is this a 6.5 Grendel . Thanks

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on March 08, 2024

This Fostech AR-15 Complete Bolt Carrier Group is not compatible with 6.5 Grendel unless you change the bolt for a 6.5 Grendel model. While 6.5 Grendel and 5.56/.223 share the same carrier, the bolt is different. I would recommend the Cryptic 6.5mm Grendel II Bolt Assembly, which can be found by using the link below:
https://www.opticsplanet.com/cryptic-6-5mm-grendel-ii-bolt-assembly-complete.html

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Q
Sammy, guest, from TN, United States, asked on July 28, 2021

How polished is the NiB finished one? Easy to wipe clean?

Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on August 19, 2021

It does not appear to be polished but will be much easier to clean than a standard bcg.

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Q
Robert, member, from OH, United States, asked on July 20, 2021

how much does it weigh?

Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on August 19, 2021

The FosTecH Complete Bolt Carrier Group (Nickel Boron) weighs 11.6oz

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Q
JAY, member, from CO, United States, asked on July 09, 2021

will this work for 300 blackout

Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on August 19, 2021

Yes this bcg works with .300 AAC Blackout.

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Q
Vegas702, member, from NV, United States, asked on June 09, 2021

is this a full auto bcg ? I'm looking to pair it with a binary trigger .

Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on August 19, 2021

Yes, this is a standard full-auto M16 cut Nickel Boron Bolt Carrier Group.

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Q
Tim, guest, from GA, United States, asked on May 13, 2021

Will this work with 6.5 grendel

Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on August 19, 2021

Yes, this will work with: 300 BLK, 5.56, 6.5 Grendal

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Q
Jj, member, from AZ, United States, asked on April 25, 2021

Will this work with 9mm

Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on August 19, 2021

No, this bolt is designed to operate with .223 / .556 / 300BLK

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Q
Renato, guest, from GA, United States, asked on March 31, 2021

Will this work with a .223, 5.56 and .300aac blackout? And will this work on a 10.5 ar15 pistol. Thank you

Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on August 19, 2021

Yes it will work for all 3 calibers.

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Q
Andre, guest, from FL, United States, asked on February 25, 2021

Does this work any .223/.556 ar15

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on March 15, 2021

Yes, it will work.

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