We're excited to introduce our new, first-of-its-kind AR-9 80 percent lower. Forget spending money on wobbly conversion blocks and mismatched parts to convert your AR-15 to 9mm.
This lower represents the easiest way to build a custom AR pistol or pistol-caliber carbine. The AR-9 lower is even compatible with factory and aftermarket Glock magazines out of the box!
AR-9 80 Percent Lower Features
This 80 percent lower ships with a proprietary Glock magazine release and 9mm ejector. All you need to complete the AR-9 lower is an 80 lower jig. See below for jig and parts compatibility.
- Accepts Glock magazines
- Compatible with any 80 lower jig
- One-piece, integrated trigger guard
- Magazine release and ejector
- Competition mag well ramps for faster reloading
- Backed by Lifetime Warranty
- Proudly made in the U.S.A.
- Caliber: 9x19mm Parabellum
- Construction: 6061 T6 Billet Aluminum
- Buffer Fitment: Mil-spec (1.146")
- Finish: Type III Hardcoat Anodized
Completing your pistol build with this lower is so easy because it works with existing black rifle parts on the market! The AR-9 80% lower is compatible with the following components:
- Upper Receiver: AR-15 w/ 9mm barrel
- Gas System: None
- Lower Parts Kit: AR-15
- Buffer System: AR-15/AR-9
- Magazine: Glock
Because the AR-9 functions with a blowback recoil system (not gas), you don't need to install a piston or gas system. All you need is a G-9 Hybrid or equivalent bolt carrier group.
Bolt Carrier Group
To use a standard lower parts kit and AR-15 hammer, install a bolt carrrier group that is ramped (illustrated right). The G-9 Hybrid is ramped. We also recommend choosing an H3 or Pistol Buffer (5 to 8 oz.) with a standard buffer spring and tube to ensure optimal cycling and functionality.
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
AR-15lowerreceivers.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.