KE Arms Announces Glock Mag-Fed KP-9 Polymer Receiver

Will P
by Will P
KE Arms introduces their new KP-9, a monolithic polymer 9mm AR lower receiver.

Phoenix-based manufacturer KE Arms makes a variety of firearms-related products, from small parts up to complete firearms. Their most recent claim to fame has been the release of their new KP-15 monolithic polymer AR lower. This receiver was intended to be significantly more durable than other manufacturers’ prior attempts at polymer AR receivers, as durability has been a widely-reported issue or concern for some shooters with non-metallic ARs in the past. TFB has covered a broad spectrum of this manufacturer’s offerings over the years, and a selection of some of those past articles is listed for you below.

KE Arms @ TFB:
KE Arms manufactures their KP-9 receivers using polymer molds like this one.

Now the company is adding another version of their monolithic polymer receiver to their catalogue: the KP-9. This pistol caliber receiver is designed to accept 9mm Glock 17 and/or 19 magazines, and maintain compatibility with other brands’ 9mm AR upper receivers. For those of you who love Olive Drab guns, there will be a limited run of 500 OD Green KP-9s made this year especially for the #ODGgang. The full text of the press release announcing this new polymer receiver reads as follows.

Another look at the KP-9's modeling - and yes, it takes Glock mags.

KE Arms is pleased to announce the KP-9 Monolithic Polymer Receiver. The KP-9 combines the features of our highly successful KP-15 Monolithic Polymer Receiver with our billet KE-9 Glock magazine compatible lower to make a lightweight, highly durable, cost effective pistol caliber carbine lower.

The KP-9 accepts Glock 17/19 magazines and comes with an adjustable steel ejector making it compatible with a wide range of blowback 9mm AR15 uppers. The magazine release is ambidextrous as standard for right and left handed shooters.

Tooling is scheduled for completion in Mid-July 2021. Production is estimated to begin in August 2021.

The KP-9 will be available in several configurations

Stripped: Includes all proprietary parts needed

Mil-Spec: Complete with Mil-Spec Fire Control Group and 9mm 5.4oz Heavy Buffer

SLT: Complete with Sear Link Technology Trigger. Sear Link Technology makes these triggers particularly more durable in pistol caliber carbines as there is no traditional disconnector for the hammer to be driven through. This unit also includes an ambi selector.

REKLUSE: Complete with RTS-1 REKLUSE Trigger. The RTS-1 REKLUSE is the next generation Sear Link Technology Trigger with an improved sealed housing and full power hammer spring for increased reliability with combloc primers. This unit also includes an ambi selector.

Limited Run of 500 OD Green KP-9s will be produced in 2021. They will all be sold as this model with the RTS-1 REKLUSE Trigger.

Follow KE Arms on social media for regular updates on new products and developments.

Instagram: ke_arms
Facebook: KEArmsOfficial
Free State: KEArms

Find KE Arms Lower Receivers

Images courtesy of KE Arms.
Will P
Will P

Lifelong hobby/sport shooter and hunter, former US Army infantryman, perpetual firearms student. Always seeking to become better and learn more. Interested in a wide variety of shooting disciplines, and passionate about all kinds of guns. Contact on Instagram: @WillTFB

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4 of 35 comments
  • Jeff Hewitt Jeff Hewitt on Jul 05, 2021

    I don't get the hate for Glock magazines in PCCs. Yes, on a technical level they may not be ideal but in reality they run well and are cheap and plentiful. JP rifles have used them for a long time and those guns see a lot of use.

    • See 1 previous
    • Beju Beju on Jul 05, 2021

      @Jeff Hewitt CZ Scorpion magazines are about the same, or even less if you compare the translucent factory CZ 30 round magazines to a factory Glock 33 round magazine.

      So I'd prefer Scorpion magazines for looks, and at today's prices, saving $10 or more per magazine. I've got Glock magazines, but no 33 rounders, so I'd be starting from zero in that respect either way.

  • Ej  harbet Ej harbet on Jul 07, 2021

    It'd be great if you could drop a 8inch barreled upper on this and not be holding a felony. One senator in the 1930s did this to us.