Made by Henry Rempel from Calgary. Cost is around $400 Canadian Dollar + Shipping.
Phone number (after 7 pm) is 1-403-272-8416
Sinclair International F Class Bi-Pod in Silver or Black
from 5.5 to 10.25, weighs 2 lbs 4 ozs, easy to take on and off stock..
Includes a cant locking feature which enables rifle cant adjustment with a large
rotating lever. Stock fore-ends up to 3 wide are easily accommodated (up to
3-3/8 without canting ability) provided there is a sturdy swivel stud installed
on the stock. The Bi-Pod attachment is a unique captured hardened pin system
which attaches the bi-pod in just a second and cant get lost. Two knobs pull
the stock against heavy, low compression felt pads for a no-wiggle mount. Leg
heights are independently adjustable, and locked in position with ratchet
rotating levers. Strong, simple, adjustable and easily attached. Available in
clear anodized (aluminum colour) or black anodized.