The Foundation is literally the cornerstone of Grey Birch. the company, the solid ground on which we will build our home. The ultimate goal in building the Foundation was always a lightweight, modular, customizable and secure base to firmly house Barrel Action in two places.

Everything is built on a solid foundation. The Foundation is a modular chassis system built on the 10/22® platform. The Foundation is packed with features to enhance the shooting experience with configurations ranging from short-range racing rifles to long-range precision rifles.

Foundation Features:

• Magwell cutout for easy magazine change
• AR Grip Compatible Mounting Point
• Standard Picatinny Stock Mount (Compatible with most Picatinny Mounted Stocks)
• Front shafts are M-Lok and Arca-Swiss compatible
• Tension Length of pull and cheek height adjustment
• Backstock adjustable as fixed
• Compatible with most 10/22 accessories

• Specifications
• Weight: 688 grams
• Overall length: 29,25 - 30,5""
• Material: 6061 T6 AL
• Design:Clear Hard Anodized

• You want so calculate the overall length of your rifle?
• Overall Length = Your Barrel length + 64,5 cm

• (note, that the folding option can be disabled using a set-screw)