Fusion 12.5 Carbon

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Calculated at Checkout
  • Trigger System, 3lbs, Ambi, Mag Release
  • Ruger, BX-Trigger, Fits 10/22, Charger
  • VQ, Volquartsen, Trigger, Group, 8 oz, hard black anodize, 10/22

Product Description


Simply, it's the merging of the receiver and barrel into one single unit.

We went back to the drawing board and designed the Fusion with the goal to improve accuracy and consistency in the semi-auto rimfire platform.

We achieve this by threading the barrel directly into the receiver instead of the traditional barrel placement using a v-block or grub screw. The result is no more wobbly barrel or the dreaded barrel droop. Because let's be honest... nobody likes anything belonging to them drooping, whether it’s a body part or the barrel of your beloved .22.

At the end of the day all the technical jargon doesn’t matter… what matters is you can now have bolt-action like accuracy on every shot. That’s a big win for all lovers of rimfire!

Here's one of the best features of the FUSION..

It can fit with most after market stocks and chassis.

  • Magpul®
  • Hogue®
  • MDT®
  • Grey Birch *cough cough*

If you love designing a fully custom setup the Fusion is a perfect foundation for your build!



The Fusion is a game changer when it comes to the union between the barrel and receiver. May the marriage between the two lead to a long, joyous and fruitful life together. Speak now or forever hold your "piece" (wink wink...).


Ice cream empires have been built upon the premise of 31 flavours. It just reinforces, who doesn't love options?! One of the best features of the Fusion is its versatility. We've had great success dropping it into many of the best stocks and chassis in the game, including our own La Chassis 10/22.


We know our firearm loving brothers and sisters have their preferences. Heck we do too. So in our never-ending pursuit to please every single person who comes across our products we got you covered. There's a 12.5" carbon, 16.1" carbon and a 16.1" steel variation available. Time to pick your poison.




The Fusion Receiver System is a proprietary receiver and barrel system to Grey Birch MFG and will come fully assembled from the factory.

The Fusion System is assembled with job specific tools to ensure proper fitment and to ensure the correct headspace.

Removing the barrel will likely result in damage to the components and will void warranty on your Fusion.

The Fusion Receiver System is compatible with most 10/22® accessories.

Some minimal modification to the stock may be required in some cases.

Grey Birch MFG Bolt not included.




PLEASE NOTE: Our chassis and receiver feature a clear hard anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. By buying this part, you understand that the color of this part may not exactly match what is visually shown on the website, and that the part may also differ in shade when matched with other parts of the same color/finish.

Other Details

Barrel Weight:
Receiver Weight:
Barrel Material:
Carbon Fiber
Receiver Material:
6061 T6
Receiver Finish:
Clear Hard Anodize
Barrel Length:
Receiver Rail:
20 MOA
Twist Rate: