Description
If the barrel length is less than 16″, it is not rifle length (unless you select the pin and weld option on the 14.5″ uppers). This means it will need to be on an AR pistol lower or a registered SBR. By purchasing an upper receiver less than 16″, you agree that you are aware of the laws, rules, and regulations and will not hold Mountain Man Defense, LLC responsible for any actions that you may or may not take.
*Build lead time is approximately 4-6 weeks for custom builds. This is not a guarantee and is subject to change.
*Backorders take approximately 8-10 weeks. This is not a guarantee and is subject to change.
More lengths coming soon!








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