Estimated shipping time from order placement is middle/end June 2022. Taking back orders. 

LDR "Fatty" Rifle (Canada Only)

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The Foundation LDR was created around the premise a semiauto rimfire rifle can be as accurate and reliable as its bolt action peer. 

The Fusion Receiver System is lovingly cradled by a solid, stable Foundation. The Foundation Chassis system ensures the receiver and barrel are secured firmly, providing a higher level of consistency from the very 1st round.

The Foundation LDR comes equipped with a multi adjustable folding stock that can be locked into a fixed positon.









6061 T6


416 S.S

.22LR BENTZ & 1:16

We’ve all put a little weight on during the pandemic, and the LDR is no different. If you're one of those guys that wants a little more weight, or a different balance point than the carbon offers, this is the model for you. 

The Foundation Long Distance Ready Rifle is a purpose-built rifle with long distance in mind. The Foundation LDR utilizes the Foundation chassis allowing for modularity and adjustability to fine tune your set up. Length of pull, cheek height adjustment, optional forend lengths and the ability to fix or fold the stock allow the end user to customize further.

The Foundation rifle also utilizes the brand new Fusion Receiver System. Moving away from the traditional v block design, Grey Birch has developed a threaded receiver and barrel system with the goal of increasing the accuracy and consistency of accuracy in the semi auto platform. The LDR with an integrated 20 MOA rail will help users push the boundaries of the 22LR and its distance capabilities. The Foundation LDR Rifle is compatible with most factory Ruger 10/22 ™ parts.

Foundation LDR Rifle Features:

  • Foundation Chassis System with Folding Stock
  • Fusion Receiver System – Integrated 20moa Receiver with 16.1” Heavy Stainless Steel Threaded Barrel
  • Magwell Cutout for Easy Magazine Changes
  • Forend’s are M-Lok and Arca-Swiss Compatible
  • Folding Stock allows for easy Packing and Storage
  • Length of Pull and Cheek Height Adjustment
  • Buttstock adjustable as Fixed or Folding
  • Ruger BX Trigger
  • Compatible with most 10/22 Accessories
  • Ships with (1) OEM Ruger 10/22 Magazine

*The Foundation Rifle is compatible with most 10/22® accessories. 

** The Folding stock ships from the factory in the locked fixed position to ensure minimum legal length requirements are met. See instruction manual for details.