Weapon Name- Mk. 68 Low Shrapnel CQB Grenade
Round Type- High Explosive
Over-all length- Length 3.53 in (88 mm)
Diameter 2.5 in (64 mm)
Barrel length- N/A
Weight- 14 oz (400 g), 164g grams of high explosive C-B
Rate of Fire- N/A
Feed Mechanism- Tubular
Round Capacity- 1
Effective Range- 6 meters lethal, 15 meters causality
Range- 25 meters safe range, 30 meters completely safe
Accuracy- N/A
Accessories- N/A
Quick switch firing mechanism- Firing pin
Scope/Sights- N/A
Muzzle Velocity- Super-sonic
Firing System- Firing pin, timed fuse
Miscellaneous/electronic information- Essentially, and M67 with the M26 and F1 close fragmentation grenade design designed to limit fragmentation distance to reduce casualties when utilized from non defensive positions or in close range.
Basic Information
Essentially, the M67 grenade design is optimal and superior the M26 in many ways. Not only is it lighter and smaller weight, but it is also more ergonomic, better balanced, easier to throw, and has the potential to hold more explosive, but it has a number of improved safety features, that disallow the grenade to be set off by accident, making it considerably safer.
However, it is a defensive grenade, with shrapnel often remaining lethal out to 200 yards. In order to reduce this effect, and produce only short range effects, the grenade simply uses a low aerodynamic, significantly larger type of shrapnel utilized by changing the crimp of the case and reducing large scale fragmentation. This fragmentation, although larger, is lighter weight, in order to reduce it's inertia. which does in some ways reduce it's fragmentation effect and strength. Despite this, it is relatively effective in close quarters.
Like the M67 and M26, it utilizes composition B filler, which is mostly RDX and a plasticizer. The Grenade is in large part similiar to the F1 grenade in Australia. This is in large part design to prevent shrapnel from traveling out to unsafe distances.
The grenade is an anti-personnel grenade with a lethal radius of 6m, casualty radius of 15m and a safety radius of 25-30m. The grenade weighs 400 grams and contains over 4000 2.4mm steel ball fragments arranged to achieve uniform distribution of lethal fragments through 360° upon functioning, in addition to a crimped case.
In most ways it functions and feels exactly like an M67, except that it's fragmentation blast radius penetrates less objects, is only intended for soft targets, and has a significantly shorter range. Reliability issues with the F1 and M26 have mostly been resolved by utilizing the M67 grenade design.
