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LaChassis is the foundation of Grey Birch, the company, the solid ground on which we will build our house. The end goal in building LaChassis has always been a lightweight, modular, adjustable and secure base to firmly house the barreled action in place from two locations. Everything builds off a firm foundation.

LaChassis is a modular chassis system built around the 10/22® platform and is packed with features to enhance the shooting experience with configurations ranging from short range race gun to long range precision.

One of the key features of LaChassis is its rear tension point, adding a second location to hold your barreled action in place for precise shooting.

M-LOK & ARCA Compatible

5" Modular Forend

Magwell Cut Out

Fixed Stock

LaChassis Features:

  • Magwell Cutout for Easy Magazine Changes
  • AR Grip Compatible Mounting Point (DOES NOT INCLUDE GRIP)
  • Standard Picatinny Stock Mount (Compatible with all most Picatinny Mounted Stocks)
  • Fixed Stock
  • Modular Forend Options
  • Forend’s are M-Lok and Arca-Swiss Compatible
  • Length of Pull and Cheek Height Adjustment
  • Compatible with most 10/22 Accessories
Weight:  688 grams
Length Of Pull:  13" - 14.5"
Overall Length:  25 - 26.5"
Material: 6061 T6 AL
Finish: Clear Hard Anodize     
Rail Length: 5"
Tools Required:
5/64 Allen Key
3/32 Allen Key
1/8 Allen Key
5/32 Allen Key

*Does not include grip or folding stock adapter

**Compatible with most 10/22® pattern receivers and trigger groups without modification.