AR-15 80% Lower Receiver

What is an 80% Lower Receiver?

An 80 percent lower receiver is an unfinished receiver which requires the end-user to finish out the trigger pocket to make it into a functioning firearm! Currently the ATF does not consider 80 lowers to legally be firearms, and their “receiver blank” page goes into more details on exactly what makes 80% lowers legal, and able to ship directly to your door, with no background check required! 

Since 80-lowers are not considered firearms, you are legally allowed to purchase these products and have them shipped straight to your door without the need of an FFL or 4473 Form which also saves you some money for more parts.

What is an 80% AR-15 Lower Receiver?

80% Lower is a general term that can apply to many different platforms, but the AR-15 80% Lower applies only to the AR-15 platform. The most standardized weapon system in existence, with the most aftermarket support, building AR-15s means you have literally endless possibilities in how to finish your rifle. Not just with aftermarket accessories either! 80% AR15 lower receivers can accept a wide variety of calibers, with some of the more popular ones listed below! 


  • .17 HMR

  • .22 LR

  • .223 Remington

  • .223 Wylde

  • .223 Valkyrie

  • .300 Blackout

  • .300 Whisper

  • .358 SOCOM (Wildcat)

  • .450 Bushmaster

  • .50 Beowulf

  • 5.56x45mm NATO

  • 6.5mm Grendel

  • 6.8mm Remington SPC

Why Buy an AR-15 80% Lower Receiver?

Because 80% AR-15 lowers are the epitome of the 2nd Amendment. There are plenty of legislators that would love to take your AR-15, or would love to stop you from building 80% lowers. The ability to build an effective defense against tyranny without the government’s involvement is the cornerstone of what the 2nd Amendment is about. The AR-15 is the most versatile platform around, from defense, to hunting, to precision rifles, and everything in between. Whatever your next rifle needs to be, build it on an 80% AR-15 lower receiver from Modulus Arms.


Read More

There are no products listed under this category.