10 is mounted on a robot 26 to insure that the barrel section 14 does not loosen during travel to the target the slight tension used to retain the barrel section 14 does not affect the ejection of the barrel section 14 a coupling mechanism 32 may be formed in the housing 24 the coupling mechanism 32 may be used to secure the system 10 to the tripod 23 as shown in fig1 or to the robot device 26 as shown in fig3 in general the coupling mechanism 32 may be some type of threaded channel or the like a tube 34 may be coupled to the housing 24 in the embodiment shown in fig1 a mounting rail 36 may be used to attach the tube 34 to the housing 24 the mounting rail 36 may be a standardized mounting platform such as the picatinny rail accessory mount or the like the tube 34 may be used to house a parachute 38 the parachute 38 may be coupled to the barrel section 14 in order to create a drag to limit the travel of the barrel section 14 a connection device 40 may be used to secure the parachute 38 to the barrel section 14 in general the connection device 40 may be coupled to the parachute 38.