Charles
here are the stats for that experimental imperial naval stun carbine:
L: 700mm, weight=3500grams, power pack weight=3000grams, cost 3000cr, 1000cr for the power pack. TL=15. Max range = 50m, 50 shots per power pack, 8 hours to recharge power pack.
Dexterity and range modifiers as per a normal carbine. Applicable weapons skill is "Stun Carbine"
Experimental energy weapon fires an ultrasonic beam doing 1D-1 damage. targets in vacc suits, combat armour and battledress are immune, all other armour has no effect. If the target is hit, they attempt to roll less than their current endurance to avoid being stunned. If they fail the END roll, they are stunned for 10 minutes per point they missed the END roll.
Power pack is identical to a laser carbine power pack and is connected to the weapon by a power cable.
Hope that helps
Cheers
Richard