The Angstadt Arms 9mm AR-15 Buffer Kit (Angstadt Arms part no. AA09BUFKIT) gives a 9mm AR build the buffer, spring and spacer it needs to run smoothly. The buffer weighs 5.4 ounces and carries an orange bumper, and the kit works with both Glock and Colt style magazines. Angstadt Arms sells it for AR9 and pistol-caliber carbine builds. The package includes a carbine buffer spring and a spacer.

Key Specifications

• The buffer weighs 5.4 ounces, the weight Angstadt Arms specifies for this 9mm kit.
• Buffer length is 3.25 inches, sized for a 9mm AR buffer tube.
• The included spacer is .75 inch, which sets the overall length of the assembly.
• Overall length with the spacer is 4 inches.
• The bumper color is orange, an easy way to identify the kit.
• The kit includes a carbine buffer spring, so the spring matches the buffer.
• The kit works with Glock and Colt style magazines, covering the two common 9mm AR lowers.
• It is made for 9mm AR-15 and AR9 pistol-caliber builds.
• Angstadt Arms sells it as a complete buffer kit with the buffer, spring and spacer together, so no other buffer parts are needed.

Frequently Asked Questions

What comes in the kit? The kit includes the 5.4 ounce 9mm buffer, a carbine buffer spring and a spacer.

Will it work with a Glock magazine lower? Yes. Angstadt Arms says the kit is compatible with both Glock and Colt style magazines.

How long is the buffer? The buffer is 3.25 inches long, and with the included .75-inch spacer the overall length is 4 inches.

Buy the Angstadt Arms 9mm AR-15 Buffer Kit, 5.4oz

A buffer that matches the bolt weight keeps a 9mm AR cycling smoothly, and Angstadt Arms sells this kit as the complete package. Browse more AR buffer systems and order from our Lubbock, Texas gun shop for fast, direct shipping.