Pistol Caliber Side Charging Upper

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)


  • Manufacturer: New Frontier Armory
  • Model: Side Charging AR-9 Stripped Billet Upper with LRBHO
  • Caliber: Multi
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  • -Additional Discount for qty of 25+ and 100+ will appear in cart

In stock

SKU: PC-NRSC Categories: ,


Side Charging AR-9 Stripped Billet Upper Receiver

 Manufacturer: New Frontier Armory Model: Side Charging AR-9 Stripped Billet Upper with LRBHO

Type: Non Reciprocating Side Charging Billet Upper Receiver

Caliber: Multi (Designed for pistol caliber AR rounds)

Magazine: Accepts all Glock pistol caliber magazines

Weight: 13.6 oz

 Other Specifications and Features of the Side Charging AR-9 Stripped Billet Upper with LRBHO:

  • Machined from 6061 billet aluminum
  • Matte black hard-coat anodized per Mil 8625 Type 3 Class 2
  • Compatible with all Glock Mag AR-9 components and most aftermarket parts
  • Adjustable tension slide lock on charging handle
  • Rear dust cover trap door that seals shut when mated with lower
  • Manufactured to MILSPEC on state of the art CNC equipment for consistent quality parts and exacting tolerances
  • Save money by building your own AR pistol caliber rifle from the ground up exactly the way you want it configured
  • Designed to match lines with New Frontier Armory C-9 and C-45 Billet Lower and most forged lowers

**NOTE:  Some rail systems that use anti-rotation tabs may need slight modification to fit this upper.  It is designed for flush mounting rails and standard hand guards.

**NOTE: When building Colt 9mm Carbines, please use our Standard C-4 Side Charging Upper

**When using this upper for a 9mm or .40 build you must either use a carbine buffer with our buffer spacer, or a 9mm LONG buffer.  Not following these instructions could cause damage to the rear door of the upper that will NOT be covered under warranty**

The New Frontier Armory Side Charging AR-9 Stripped Billet Upper with LRBHO is proudly MADE IN THE USA by hard working American men and women.

Additional information

Weight 1.05 lbs
Dimensions 9 × 3.5 × 3.5 in

1 review for Pistol Caliber Side Charging Upper

  1. Rated 5 out of 5

    bbrandow99 (verified owner)

    This upper was out of stock when I started looking at it. I signed up for email notification and once in stock I ordered right away. First off, it shipped same day and I had it a few days later. Next, quality and finish are very nice-great craftsmanship. While this is the first part of my AR9 build, I had a buddy put it on his no-name PCC to test the LRBHO (which he doesn’t have) and it works great (I think he’ll be buying one). Last I’ve shot the company a few emails and I always have received a fast informative response. Great job guys!

    • David Famiglietti

      Thanks for your feedback Sir! We’re glad you’re happy with the product and level of service you received and we appreciate your time leaving the review!

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Questions and answers of the customers

  1. 0 votes
    Answered by the admin

    It depends what the upper is being used for.  There are some DI pistol caliber systems that need the hole.  There are also some rails that have assy tools that index off that hole, so we leave it in there.

  2. 0 votes
    Answered by the admin

    Yes, The BCG will lock back on an empty magazine when using this upper receiver.  If you need help with adjusting the LRBHO wireform to work best with your individual magazines, please read the instructions in the product description.


    There are a number of things that can cause feeding issues on Pistol Caliber Blowback operated guns.

    Among the most common issues:

    1. Improper cleaning / not oiling
    2. Barrel feedramp
    3. Flat nosed bullets or low power ammo
    4. Improper buffer and spring weights / not tuned for certain ammo
    5. Magazine problems

    If you're having any type of trouble with feeding, you can use the warranty form on our contact us page and a member of our staff can help you troubleshoot your specific problems based on your build specs.

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