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Arc Divisions integrally ported slide and barrel builder kit for Glock 48.

The kit include a slide, barrel, backplate, and optic cut cover plate.

Internal parts kits are not included. 

Compatible with factory and aftermarket kits.

Black Nitride only.

Reactor48 Builder Kit - For GLOCK G48

Rating is 5.0 out of five stars based on 7 reviews
$599.99 Regular Price
$499.99Sale Price
Excluding Sales Tax
  • Slide

    • Compatibility: 43, 43x, 48
    • Material: 416R Stainless Steel
    • Finish: Black Nitride
    • Made in the USA

    RED DOT COMPATIBILITY: Shield Arms RMS Series optics (RMS, RMSc, RMSw, and SMS)  Holosun 507K

    Barrel

    • Handgun Type: 48
    • Barrel Caliber: 9mm
    • Barrel Profile: Ported Reactor Barrel
    • Barrel Material: 4150
    • Barrel Twist: 1:10
    • Barrel Finish: Black Nitride
    • Crown: 11-degree Target Crown
    • Rifling Method: Button Rifled, Fully Stress Relieved
    • Rifling Type: Conventional 
    • Made in the USA

Reviews

Rated 5 out of 5 stars.
Based on 7 reviews
7 reviews
  • Joe (Redacted)Mar 22, 2025
    Rated 5 out of 5 stars.
    Verified
    Itwerks!

    Just like the 43x slide, but longger...

    Fit and finish are perfect, and really does tame the recoil on these micro compacts. The slide serrations are fantastic too, feel like that is an underappreciated feature when swapping to Arc!


    Highly recommend! stop spending almost the same for a barrel + comp that makes your pistol ammo picky and cumbersome.. #ReactorGang

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  • David GOct 16, 2025
    Rated 5 out of 5 stars.
    Verified
    Best Ready to Run Setup

    This is hands down the best ready to run, drop in, custom ported Glock setups there is. Sure you can send in your stock slide and barrel and wait for weeks-months, OR you can buy this setup that’s ready to drop in and head to the range. I paid for my kit with my own hard earned money as well and it was well worth it after you factor in the slide cost, barrel cost, and milling/ machining work to port and optic cut, plus the lead times. Patch is also AMAZING. Saving up for a slide for my G45.

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  • Mike hughesDec 26, 2025
    Rated 5 out of 5 stars.
    Verified
    Very happy!

    Got this slide for my stock glock 48. Makes it shoot so much flatter. Great for my edc and for a fun uspsa gun at local matches.


    Holoson eps carry 6moa green, tungsten guide rod and a johnny glock combat trigger makes this a slick combo.

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  • Veteran Arms LLCAug 24, 2025
    Rated 5 out of 5 stars.
    Verified
    Makes a Great Glock even Greater

    There is no better quality provider for clones than Arc. Whenever someone visits my store and mentions wanting a “Gucci Glock,” I always recommend Arc. I own several Glocks, but my preferred models are the 17, 19, and 48, which I use exclusively. When teaching my classes, students often ask where I obtain my slide and barrel, assuming they are from Agency Arms or Noveske. However, in terms of quality and attention to detail, Arc surpasses those brands. These are now the only Glocks I run.

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  • Juan MayorAug 26, 2025
    Rated 5 out of 5 stars.
    A little slice of heaven

    The fit and finish are fantastic and the aesthetics are amazing! It also really works to help reduce recoil. I love it!

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