Q&A for LANTAC M-SPEC Bolt Carrier Group (BCG)

LANTAC M-SPEC Bolt Carrier Group (BCG)

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Jonathan Hobbs, member, from CA, United States, asked on February 17, 2025

Is this for an AR10 or AR15?

Manufacturer Answer

Answered by Lantac, Manufacturer from TX, United States, on February 19, 2025

There is a 5.56/.223 version and a 7.62/.308 version.

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Ross, member, from TX, United States, asked on June 06, 2023

Is the interior of the bolt chrome lined?

Expert Answer

Answered by Ethan, Gear Expert, from IL, United States, on June 07, 2023

No. The LANTAC M-SPEC Bolt Carrier Group is manufactured from 8620 steel, case hardened and hard turned/ground so that internal dimension is exact to mil specifications. It is then QPQ Nitrided rather than Type M Phosphated to give increased corrosion resistance, durability and performance. The Bolt is machined from Carpenter 158 or 9310, shot peened and hard turned as per the military spec. Each BCG is further fitted with a Lantac CP-R360 domed head cam pin, which are precision machined from 17-4PH stainless steel, hand polished and hardened to H900 condition, this further reduces friction and wear within the upper receiver.

2 of 2 found the following answer helpful.

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King77, member, from VA, United States, asked on January 26, 2023

will this work on semi auto rifles

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on September 22, 2023

The LANTAC M-SPEC Bolt Carrier Group (BCG) models listed are either for Mil-Spec AR15 rifles or Large Frame DPMS ARs semi auto rifles.

1 of 1 found the following answer helpful.

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GeneralKenobiWins, member, from CO, United States, asked on December 23, 2022

Will the .308 model of this BCG work with the 6.5 creedmore round?

Manufacturer Answer

Answered by Lantac, Manufacturer from TX, United States, on January 04, 2023

Yes, it will!

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SComp, member, from SC, United States, asked on July 21, 2022

Trying to find out the weight of the lantac "milspec" bcg in 5.56 I looked on their website had the "enhanced" bcg weight but not the mil-spec. TY

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on August 04, 2022

Lantac does not state the specific weight of the LANTAC M-SPEC Bolt Carrier Group. They do state there is a slight increase in weight compared to a standard Mil-Spec BCG. For the specific weight I recommend contacting Lantac.

0 of 1 found the following answer helpful.

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Michael Adair, member, from TX, United States, asked on April 23, 2022

Will this work in a AERO M5 308 upper receiver?

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on May 04, 2022

Yes, the .308 model of the LANTAC M-SPEC Bolt Carrier Group will work with an Aero Precision M5 upper. The model number you need is 01-MSPEC-762-NIT-EBCG.

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Bubba769, guest, from TX, United States, asked on March 16, 2022

Will this work in the del-ton ar15? And this is a m16 type bcg correct? How does it perform full auto wise?

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on March 17, 2022

Yes, the LANTAC M-SPEC Bolt Carrier Group will work in a Del-Ton AR15. The LANTAC M-SPEC Bolt Carrier Group is full auto rated.

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William Miehe, member, from TX, United States, asked on February 01, 2022

Is the bolt HPT and MPI?

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on February 04, 2022

Yes, the LANTAC M-SPEC Bolt Carrier Groups are MPI and HPT.

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Eric Escamilla, member, from KY, United States, asked on December 21, 2021

Will it work with 300 blackout

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on January 10, 2022

The LANTAC M-SPEC Bolt Carrier Group will work for 300 Blackout.

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M, member, from CA, United States, asked on January 16, 2021

Caliber: .308 Caliber Code: 2D0-BCG-MSPECBCG-01-MSPEC-762-NIT-EBCG MPN: 01-MSPEC-762-NIT-EBCG UPC: 711841794101 Is this bolt DPMS compatible?

Expert Answer

Answered by Patrick, Gear Expert, from IL, United States, on September 28, 2021

Yes this should work for the DPMS upper.

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Q&A for LANTAC M-SPEC Bolt Carrier Group (BCG) — 13 Questions & 12 Answers