--- title: CMMG Resources | AR description: AR | Explore CMMG's comprehensive AR-15 and AR-10 resources. Expert tips, how-to guides, and product info for firearm enthusiasts. Improve your shooting skills today! --- [![CMMG Resources](https://resources.cmmg.com/hubfs/Resources/CMMG-resources.png)](https://resources.cmmg.com/) # Explore CMMG's comprehensive AR-15 and AR-10 resources. Expert tips, how-to guides, and product info for firearm enthusiasts. Improve your shooting skills today! CMMG Resources Posts about # AR [AR](https://resources.cmmg.com/tag/ar), [AR pistol](https://resources.cmmg.com/tag/ar-pistol), [AR15](https://resources.cmmg.com/tag/ar15), [CMMG Platforms](https://resources.cmmg.com/tag/cmmg-platforms) ## [What are the different CMMG Sub-brands and Platforms, and why do they matter?](https://resources.cmmg.com/what-are-the-cmmg-ar15-and-ar-pistol-platforms-and-why-do-they-matter) If you’re not familiar with CMMG, or you are, but never quite understood what the different names... 4 Minute Read [Read More](https://resources.cmmg.com/what-are-the-cmmg-ar15-and-ar-pistol-platforms-and-why-do-they-matter) [AR](https://resources.cmmg.com/tag/ar), [lower receiver](https://resources.cmmg.com/tag/lower-receiver), [lower parts kit](https://resources.cmmg.com/tag/lower-parts-kit) ## [Lower Parts Kit Install](https://resources.cmmg.com/lower-parts-kit-install) Before we begin this adventure, it should be noted that, while this can certainly be done with... 8 Minute Read [Read More](https://resources.cmmg.com/lower-parts-kit-install) [AR](https://resources.cmmg.com/tag/ar), [AR15](https://resources.cmmg.com/tag/ar15), [mil spec](https://resources.cmmg.com/tag/mil-spec), [AR10](https://resources.cmmg.com/tag/ar10), [commercial spec](https://resources.cmmg.com/tag/commercial-spec) ## [Mil-Spec, Commercial Spec, and the “AR10” Confusion](https://resources.cmmg.com/mil-spec-commercial-spec-and-the-ar10-confusion) Mil-Spec, or “Military Specification”, is the criteria used by the military to meet the standard... 2 Minute Read [Read More](https://resources.cmmg.com/mil-spec-commercial-spec-and-the-ar10-confusion) [9mm](https://resources.cmmg.com/tag/9mm), [AR](https://resources.cmmg.com/tag/ar), [AR pistol](https://resources.cmmg.com/tag/ar-pistol), [Mk9](https://resources.cmmg.com/tag/mk9) ## [Understanding CMMG’s Mk9 Platform](https://resources.cmmg.com/understanding-cmmgs-mk9-platform) INTRODUCING THE UPGRADED MK9 2 Minute Read [Read More](https://resources.cmmg.com/understanding-cmmgs-mk9-platform) [REGISTER FOR UPDATES](https://cmmg-dev.grayloon.com/insider-registration) [![CMMG Resources](https://resources.cmmg.com/hubfs/Resources/CMMG-resources-rev.png)](https://www.cmmg.com) - [RESOURCES HOME](https://resources.cmmg.com) - [CMMG.com](https://www.cmmg.com) ©2021 CMMG® Inc. All rights reserved. [Privacy Policy](https://www.cmmg.com/privacy-policy)   |   [Terms and Conditions of Use](https://cmmg.com/terms-and-conditions) ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "contentUrl" : "https://7690766.fs1.hubspotusercontent-na1.net/hubfs/7690766/CMMG_LPK_06_Preview.mp4", "dateModified" : "2023-06-16T21:14:07.062Z", "duration" : "PT3M19.2S", "height" : 1080, "name" : "CMMG_LPK_06_Preview", "thumbnailUrl" : "https://api-na1.hubapi.com/filemanager/api/v3/files/thumbnail-redirect/120995831649?portalId=7690766&size=medium", "uploadDate" : "2023-06-16T21:13:53.884Z", "width" : 1920 } ```