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Q&A for Griffin Armament Enhanced Mil Spec Bolt Carrier Group (BCG) — 36 Questions & 36 Answers

Name Griffin Armament Enhanced Mil Spec Bolt Carrier Group (BCG) (4.9)
$174.95 $159.95 Save $15.00
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Q
codey, member, from OH, United States, asked on March 23, 2025

Is this made in America?

Manufacturer Answer
A
Answered by Griffin Armament, Manufacturer from WI, United States, on May 21, 2025

Yes this is made in the production facility in Watertown WI.

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Q
e, guest, from CO, United States, asked on March 18, 2025

dumb question. but what is mil-spec I have an off brand upper ar15 but no bolt carrier would this work �

Manufacturer Answer
A
Answered by Griffin Armament, Manufacturer from WI, United States, on May 21, 2025

AR15 Upper receivers are manufactured to the "Military Standard Specification"(Mil-spec) so most carriers that are Mil-spec should work as long as your upper and the BCG are in spec.

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Q
Hoss, member, from KS, United States, asked on March 04, 2025

Is this a complete BCG?

Manufacturer Answer
A
Answered by Griffin Armament, Manufacturer from WI, United States, on May 21, 2025

Yes this a full carrier and bolt package.

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Q
Fourty Five, member, from MT, United States, asked on January 24, 2025

Is this BCG M16 cut? Or rated for full auto

Manufacturer Answer
A
Answered by Griffin Armament, Manufacturer from WI, United States, on December 10, 2025

Yes, the Enhanced Mil Spec Bolt Carrier Group is an M16-cut carrier and is rated for full-auto use.

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Q
Fourty Five, member, from MT, United States, asked on January 08, 2025

Will it also chamber a 223

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on January 08, 2025

Yes, the Griffin Armament Enhanced Mil Spec Bolt Carrier Group is fully compatible with .223.

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Q
jay, member, from KY, United States, asked on September 02, 2024

Will this work on a carbine gas system with a jp enterprise silent capture spring?

Manufacturer Answer
A
Answered by Griffin Armament, Manufacturer from WI, United States, on December 17, 2025

Yes, the Enhanced Mil-Spec BCG will work perfectly with a carbine gas system and a JP Enterprises Silent Captured Spring (SCS). However, there is one very important technical detail regarding the installation: The "Carrier Weight" Rule. Because the JP Silent Captured Spring is a self-contained unit with its own guide rod, it requires a hollow-cavity bolt carrier. The Good News: Our Enhanced Mil-Spec BCG is a standard Full-Auto profile, which means the rear of the carrier is hollow. The Requirement: You must remove the internal weights (the steel or tungsten weights held in by a roll pin) from the rear of your bolt carrier if they are present. Most "Full Auto" carriers, including ours, are shipped hollow or can be easily cleared to allow the JP guide rod to enter the rear of the carrier during the recoil stroke.

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Q
Ian, guest, from OK, United States, asked on September 01, 2024

Where is this manufactured at ?

A
Answered by CS, guest, from WI, United States, on November 29, 2024

This is manufactured in Watertown WI

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Q
J, member, from MP, United States, asked on December 09, 2023

Can this be used for full auto

A
Answered by CS, guest, from WI, United States, on November 29, 2024

Yes this BCG is full auto rated.

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Q
tdug20, member, from OR, United States, asked on December 05, 2023

Plan to run this on a 7.5" Faxon Match 300 BLK Barrel...what length gas tube will I need? Should I install and measure to determine tube length?

Manufacturer Answer
A
Answered by Griffin Armament, Manufacturer from WI, United States, on December 26, 2025

You will need a pistol length gas tube

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Q
Ricky, guest, from CA, United States, asked on August 23, 2022

Does this BCG compatible with AR 15 Semi Auto?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on September 01, 2022

The Griffin Armament Enhanced Mil Spec Bolt Carrier Group will work in a Mil-Spec Semi Auto AR15.

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