PMACA Lightweight Chassis

$149.50 - $204.95
(71 reviews) Write a Review
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  • 4 Oz lighter than the PMACA Standard Chassis
  • Fits Ruger® 10/22® standard and bull barrels
  • Adapts the Ruger® 10/22® rifle to AR15 components: Stock, Grip, and Picatinny rail
  • Innovative design minimizes bulk and weight for a clean look
  • High quality anodized aluminum precision machined from billet
  • Included items:
    • PMACA Light Weight Chassis
    • 1.75" Picatinny rail
    • Universal tang for grip
    • lock ring for the stock
    • Mounting hardware

View Customer Builds


  • Total weight of the kit: 12 Oz
  • Material : Anodized 6061-T6
  • Length: 11.75"
  • Width: 1.5"
  • Maximum free floating barrel diameter: 1.0"
  • Compatible 10/22® rifle models
    • Ruger®
    • Tactical Solutions
    • Kidd
    • Magnum Research
    • Select Fire LLC


The PMACA Light Weight Chassis  is a light weight version of the PMACA Standard Chassis.  It is machined from a single piece of 6061-T6 aluminum billet and then anodized.  We have spent extra time machining away extra weight without compromising the strength and durability of the chassis.  If desired the chassis can be painted with Cerakote in a number of colors.  The Cerakote ceramic coating provides additional protection and offers a selection of colors not available with anodized aluminum.  For custom requests, inform us of color choice in notes section.

The use of the chassis allows you to use AR15 stocks, grips, and a Picatinny rail for accessories such as a front grip, laser or flashlight.

Example Build:

  • Standard Ruger® 10/22® receiver
  • Factory Barrel
  • PMACA Lightweight Chassis
  • Magpul Collapsible Stock
  • Magpul Grip
  • Magpul vertical foregrip

Assembly instructions




Ruger® and 10/22®, and 10/22 Takedown® are registered trademarks of Sturm, Ruger and Co., Inc. . PMACA is not affiliated with Ruger® and is independently owned and operated.  All PMACA products are designed and manufactured in the USA.  


71 Reviews Hide Reviews Show Reviews

  • 4
    lightweight cassis

    Posted by ROGER SHAW on Mar 25th 2021

    seems well made. I will be making a steel challenge rifle.

  • 5
    PMACA lightweight chassis

    Posted by Ted on Mar 22nd 2021

    Very well built, accessories fit well, and rifle fits nice and snug (no movement at all).

  • 5
    Lightweight chassis

    Posted by Keith Hearn on Mar 16th 2021

    Really like the lightweight chassis for various 10/22 makeups that I have. Looking forward to purchasing another chassis from PMACA for future builds.

  • 5
    Excellent Chassis!

    Posted by Alec McDowell on Feb 16th 2021

    Very happy with this product! Only minor gripe might be that the area where the pistol grip attaches has a little bit of a lip that can be a bit uncomfortable to grip, but it’s a pretty minor issue solved with slight grip adjustments!

  • 5
    Fit and finish I’d beautiful!

    Posted by Norm on Feb 13th 2021

    Project went together well!

  • 5
    this all you want for competetion frame i have two

    Posted by rally jarmo koski on Feb 8th 2021

    light fit berfect for all my rifles thank you

  • 4

    Posted by Tyler Cox on Jan 28th 2021

    Anodize black does scratch easily but does wipe off. Fit was nice but the Allen takedown screw isn’t 5/32 like they say it is. Had to use a Torx bit to tighten down. I’m happy tho and would buy again.

  • 5
    excellent chassis

    Posted by Michael on Jan 26th 2021

    Shipped out and arrived very quickly, product came as described. The finish is very nice, the fit wasn't 100% without some work but my 10/22 is about 20 years old and I also had issues getting it in an aftermarket stock previously, so I imagine a newer 10/22, etc. would fit a lot easier.

  • 5
    Lightweight chassis

    Posted by Will on Jan 18th 2021

    Wonderful little chassis system.

  • 3
    lightweight chassis

    Posted by brad on Jan 4th 2021

    the one i wanted was sold out it not the one i really wanted it OK i guess