Obscurant device
Ocean floor mine
Oil and polyethylene glycol fill material for use in...
Oil well perforator liner with high proportion of heavy metal
On-board low voltage device for generating plasma discharges...
One piece wad column and shot cup
One-piece shotshell
One-piece shotshell casing
Open breech high rate automatic rocket launcher
Open breech hot launched fiber optic payout system
Open chamber breech mechanism with propellant gas actuated...
Open chamber gas powered tool and gas generating charge...
Optical beam projector
Optically doped energetic igniter charge
Overflying munitions device and system
Overhead attack missile