This is the South-African No 2 (R1M1), a copy of the American M18A1 often called the SHRAPNEL MINE No 2, a High-Explosive-Fragmentation (HE-Frag), claymore shaped, plastic-bodied, directional, anti-personnel (AP), landmine that is designed to wound or kill by its fragmentation and is initiated by electrical command or by a tripwire.
The landmine is fitted with scissor legs, is supplied with a reel of twin-flex electric cable, an M2A1 electric detonator (or an M4 detonator with 33m of cable), an M57 firing device (dynamo exploder) and an M40 circuit testing unit. The body of the landmine is brown or green glass-reinforced polystyrene with a convex face housing 700 steel balls in a resin matrix. Behind this is the main-charge of PE9 (C4) plastic explosive. On the top surface are two threaded detonator wells, sealed with L-shaped plastic plugs. Between these is a peep sight to aid alignment. The landmine is normally detonated electrically using the hand dynamo provided, though a second detonator well is available for tripwire initiation or linking landmines by detonating cord.