Fusion Summit 16.1 C

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Product Description

We are beyond excited to launch our very first collaboration with none other than the OG of rimfire, Volquartsen Firearms. Volquartsen Firearms was started in 1974 by Tom Volquartsen initially focusing on gunsmithing until around 1991. In 1991, Tom pivoted over to rimfire, laying the foundation of the company you know today, building world class rimfire rifles and pistols. As rimfire enthusiasts ourselves, we’ve always respected and looked to Volquartsen as the gold standard and are extremely excited for this collaboration.




The Volquartsen Summit and Grey Birch LDR just had a love child……and it’s beautiful.


The new LDR Summit rifle will use the VQ Summit receiver and bolt action, paired with the Grey Birch threaded barrel Fusion system, housed in the LaChassis stock system.




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

We achieve this by threading the barrel directly into the receiver instead of the traditional barrel placement using a v-block or grub screw.

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

It can fit with most after market stocks and chassis.

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.



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.



Weight: 2.9lbs

Barrel Material:Carbon Fiber / 416 Stainless Steel

Receiver Material:6061 T6

Receiver Finish:Clear Hard Anodize

Barrel Length:16.1"

Receiver Rail:20 MOA

Caliber:.22LR BENTZ

Twist Rate:1:16