counterpoise gun carriage

counterpoise gun carriage

[′kau̇nt·ər‚pȯiz ′gən ‚kar·ij]
(ordnance)
The mechanism that counterbalances the weight of the breechblock of a large gun.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.