Pistol Caliber Side Charging Upper

(1 customer review)


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

Weight1.05 lbs
Dimensions9 × 3.5 × 3.5 in

1 review for Pistol Caliber Side Charging Upper

  1. 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

    Yes, we've used them on several demo guns

  2. 0 votes

    It works with the upper receiver; however, the BAD lever is not compatible with our C-45 lower receiver.

  3. 0 votes

    We can’t think of any reason that it would not work, although we can’t say a definite yes or no with the BCG, but barrels are pretty much universal.

  4. 0 votes

    Torque to 30 FT LBS when using a non-clocked bbl nut

    Torque to a min of 30 FT LBS and Max 80 FT LBS when using a clocked bbl nut

  5. 0 votes


  6. 0 votes
  7. 0 votes
    Q Will this upper work with the Jack9 lower? answer now
    Asked by Dillion Steinman on April 12, 2019 8:01 pm

    Yes, it will work but he will have to remove the LRBHO parts because the lower already comes with the LRBHO feature. We would recommend using the C5-NRSC so you don’t have to worry about removing any parts.

  8. 0 votes
    Q Will the LRBHO work with a Faxon BCG? answer now
    Asked by John on February 26, 2019 10:25 pm


  9. 0 votes

    CMMG radial delay bolt carriers aren’t compatible with our side chargers due to the lack of cam cutout inside the receiver.

  10. 0 votes
    Q Can this upper be used for a 10mm pistol build? answer now
    Asked by Joshua Nalley on January 21, 2019 7:16 pm
    Answered by the admin


  11. 0 votes
    Q Will this work with a radial delayed bcg? answer now
    Asked by Jordan Matthews on January 5, 2019 11:19 pm
    Answered by the admin

    No, it will not work due to the lack of cam pin clearance cut.

  12. 0 votes
    Answered by the admin

    No, it will not need a spacer.

  13. 0 votes
    Answered by the admin

    No, it doesn't.  It works with all standard BCG's.

  14. 0 votes

    No, you would need to use a C-5 series upper.

  15. 0 votes
    Answered by the admin

    It's very tight at first, especially until its assembled so you can get the proper leverage on it.  It should be very tight and might need a jolt to get it out the first few times as the coatings wear in.  If you still find it too tight, the detent can be adjusted with the screws in the handle, yes.

  16. 0 votes
    Q What is the hole for where a gas tube would go answer now
    Asked by Henry on December 11, 2018 6:12 pm
    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.

  17. 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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