PMACA Lightweight Chassis

(25 reviews) Write a Review


  • 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.  


25 Reviews

  • 5

    Posted by Mr joshua on Jun 29th 2020

    Shipped and arrived in a very timely manner. I'm very satisfied with my purchase.

  • 5
    Great chassis!

    Posted by Dennis Brumbaugh on Jun 22nd 2020

    Fits perfectly! Love the light weight and looks sharp on the gun. Thanks!

  • 5
    Lightweight chassis

    Posted by Kevin on Jun 18th 2020

    Definitely worth the money. Would purchase again if long nose is ever available

  • 4
    great product

    Posted by Bob A on May 28th 2020

    this chasis is awesome. i have 3 others before which led me to buy this one again. the only thing i don't like is that you can't put on an AR grip with a beaver tail on it. it si good that the front rails can be removed. i don't need it, so i removed it on mine.

  • 5
    Pmaca lightweight

    Posted by Alex on May 19th 2020

    Fantastic product. Fast shipping. Everything that I had hoped it would be. Works perfect with my ruger 10/22. Drastically improved accuracy over the cheap plastic stock. Didnt have a color that i wanted so i went with the black anodized and painted it myself. Came out great. Will definitely be buying another to surprise my father with for father’s day.

  • 5
    Light, durable, and looks great!

    Posted by Reda Ouchna on May 1st 2020

    This is a well made chassis. The only thing I would have wanted are MLok slots at the bottom. Highly recommend.

  • 5
    subsonic lightweight chassis

    Posted by Jim on Apr 30th 2020

    great form and fit, well made, good anodizing... bought the "subsonic" version for my 4.5" barrel; only thing to be aware of is that would be nice to get a little shorter to accommodate fatter diameter cans

  • 5
    Perfect fit!

    Posted by Zach on Apr 22nd 2020

    This fit my metal trigger guard era 10/22 perfectly. It has a kidd trigger guard in it now. The fit is tight but didn't require any forcing.
    I tried one loose grip with it and the screw wasn't long enough. I put a standard a2 grip on with zero trouble.
    This was my first time installing a buffer tube. I used an armorer's tool and went a bit past snug by hand. No torque wrench. If it loosens, I'll try again. But i don't think it will.
    The only thing i need now is a lightweight barrel.
    Thanks for the great chassis at a great price!

  • 5
    Lightweight chassis

    Posted by David on Mar 30th 2020

    Perfect fit and finish

  • 5
    Fantastic product and rapid shipping

    Posted by Kevin Oltmann on Feb 7th 2020

    Ordered with a suppressor cut for 4.5" barrel and had assumed this modification would have added time to fulfill the order. As far as I could tell there was no delay, Fast shipping and awesome product! I had to remove some flashing from the casting of my Ruger factory trigger housing, no big deal and a nice tight fit.