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Q&A for CompMag AR-15 5.56x45 10-Round Compliant Locked Magazine — 13 Questions & 16 Answers

Name CompMag AR-15 5.56x45 10-Round Compliant Locked Magazine (3.1)
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Q
Al, member, from CA, United States, asked on January 25, 2022

Is this the gen 2 ?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on February 28, 2022

This is the newest generation CompMag AR-15 5.56x45 10-Round Compliant Locked Magazine.

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Q
Gonzalo, guest, from NY, United States, asked on August 28, 2020

Would this mag work for 6.5 grendel?

Manufacturer Answer
A
Answered by CompMag, Manufacturer from CA, United States, on June 13, 2022

No, It is not Compatible with 6.5 Grendel ammo.

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Manufacturer Answer
A
Answered by CompMag, Manufacturer from CA, United States, on June 13, 2022

Bullpup firearms such as the Tavor do not have a 2-piece receiver (upper and lower). This may limit your access to the top of the mag for removing it. For the AR Gen 3, even though you may be able to get the CompMag in and locked in place, you may not be able to get it out. You may not be able to access the release hole. On the Gen.2, you may not be able to lock it in. Always check with a regular magazine to be sure you can perform the steps necessary to install and remove a CompMag before ordering. If you do order it and it doesn’t fit, you can always send it back for a refund, but checking first saves you some time.

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Q
Mike, guest, from CA, United States, asked on May 29, 2022

Is this the gen 3 version? It says on the front of the box.

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on June 07, 2022

Yes. This CompMag AR-15 5.56x45 10-Round Compliant Locked Magazine is the newest generation version of this magazine.

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Q
alex, member, from CO, United States, asked on April 12, 2022

Are these gen 3 or still gen 2?

Manufacturer Answer
A
Answered by CompMag, Manufacturer from CA, United States, on June 13, 2022

This is the GEN.2

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Q
Melissa Coon, member, from NY, United States, asked on April 10, 2022

Is this the Gen 3 and if so does it come with the release tool?

Manufacturer Answer
A
Answered by CompMag, Manufacturer from CA, United States, on June 13, 2022

This is the GEN.2. The GEN.3 is also sold at Optics Planet and does come with he release tool.

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Q
Rob, member, from NJ, United States, asked on March 27, 2022

Does this version work with 300 blackout without modifications?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on March 31, 2022

Yes, the CompMag AR-15 5.56x45 10-Round Compliant Locked Magazine will work with 300 Blackout. The CompMag AR-15 5.56x45 10-Round Compliant Locked Magazine will work with the following cartridges .223, 5.56, .300ACC Blackout, and .277 Wolverine Ammunition.

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Q
Jay cee, member, from CA, United States, asked on January 31, 2022

Is this compatible with the saint ar15?

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

The CompMag AR-15 5.56x45 10-Round Compliant Locked Magazine will work with standard AR15's. So yes, it will work with a Springfield Saint AR15.

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Expert Answer
A
Answered by Brandon B, Gear Expert, from IL, United States, on September 30, 2021

Please reach out to us at techsales@optics.com for more information to your question.

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Q
Christian Rosa, member, from CT, United States, asked on January 09, 2021

Will this fit a DSI-15 ?

A
Answered by Brandon, member, from UT, United States, on January 18, 2021

It should work with a Dark Storm Industries DS-15.

Compatible with standard AR-15 type lowers. (M4, M16, AR15). Compatible with other firearms that accept a STANAG (AR-15) magazine and have a removable upper receiver; such as the SCAR16, Bushmaster ACR, SIG MCX, CZ Bren, SIG 556, and Daewoo DR200. NOT compatible with lowers that have a custom or extended magazine well (such as Seekins SP225, Sharps Bros, HKMR, and Spike's Jack). Not compatible in bullpup firearms such as the Tavor. NOT recommended for polymer lowers.

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Last updated 2025-11-12 UTC.