The MK1 is a traditionally propelled speargun with a material construction consisting of aluminum, stainless steel, syntactic foam, and reinforced nylon. Its geometric profile is hexagonal and is equipped with an accessory rail for seamless accessory attachment. 
 
Included in base model:
Spear Gun 
Spear Tip
One 5/16th Stainless Steel Shaft (Gun Length dependent)
Two 1/2" Bands
Accessory Rail Cover
 
General Specifications 
Length: Optional, Width: 1"
Hexagonal Geometry
6061 T6 Aluminum Body
316 Stainless Steel Internals & Hardware
Internal High Strength Syntactic Foam
Billet Aluminum Trigger Block
Reinforced Nylon Material for Handle, Buttstock, Finger Guard, and Accessory Rail
Anodization
Options: Black/Red
Mil-Spec Soft Anodization 
Shaft
Length: Length Dependent,  Diameter: 5/16"
Heat Treated 17-4 Stainless Steel
 
Accessory Specifications:
Laser 
5-MW Green Laser
Modes: On/Off
3 Hour Run Time
6 Hour Charge Time
Crush Depth: >100ft
Light 
700 Lumen LED 
Modes: High Power/Low Power/Strobe/Off
3 Hour Run Time
6 Hour Charge Time
Crush Depth: >100ft
 
Care
Rinse thoroughly after use. Remove accessories from speargun after use. 
Periodic tightening of body screws.