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Q&A for JP Enterprises Stainless Full Mass FMOS Bolt Carrier — 5 Questions & 4 Answers

Name JP Enterprises Stainless Full Mass FMOS Bolt Carrier (5)
$245.00 $232.75 Save $12.25
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Q
Fonsey97, member, from CA, United States, asked on July 28, 2022

Is this a AR-15 BCG or M16/M4 Full auto BCG?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on August 09, 2022

The JP Enterprises Stainless Full Mass FMOS Bolt Carrier model JPBC-2 is the "duty application" model. This model is designed for Mil-Spec dimension AR15's. The JP Enterprises Stainless Full Mass FMOS Bolt Carrier model JPBC-16 is the M16 BCG which we currently do not have available.

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Q
Jonnyds91, member, from NJ, United States, asked on February 23, 2022

Will this take a 6.5 Grendel bolt?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on May 17, 2022

Yes, the JP Enterprises Stainless Full Mass FMOS Bolt Carrier can be used with a 6.5 Grendel Bolt.

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Q
Lawrence, guest, from NY, United States, asked on September 06, 2021

Is this for large frame LR 308 or small frame AR-15?

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A
Answered by Todd, Gear Expert, from IL, United States, on October 21, 2021

Small frame .223.

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Q
Crow, member, from OK, United States, asked on June 05, 2021

Can this be used for left hand?

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A
Answered by Todd, Gear Expert, from IL, United States, on October 21, 2021

The left handed forward assist would not work.

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Q
primo, member, from FL, United States, asked on April 26, 2026

This is just the bolt carrier without the bolt right?

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Last updated 2025-11-12 UTC.