There is nothing wrong with these missiles,
This review is from: Tkc William Mark Corp Mighty Missile Replacment Rockets (2pk.) (Toy)
There is actually nothing wrong with these missiles. The disappointment of the two reviewers, Stuart O and Ed K, has arisen because there are TWO versions of the William Mark Air Burst rocket launcher.
1. The original Air Burst rocket launcher, which can send missiles up to 1,000ft in the air
2. A smaller system called Air Burst Mighty Missile, which is intended for younger children and uses slightly smaller, lighter missiles (the ones that Stuart O and Ed K purchased).
The original Air Burst missiles have either a red body with the word 'PULSAR', or a black body with the word 'TRIDIUM'. The smaller Mighty Missiles have plain red bodies. All the missiles have black foam heads and yellow cardboard tail fins.
The original (more powerful) Air Burst rocket launcher is no longer available in UK shops, but can easily be purchased from Phil's Hobby Shop -[...] - through Amazon UK. I've bought four launchers from Phil's Hobby Shop, and all have arrived promptly and in perfect order. One parcel of two launchers slipped through customs duty free - the other cost me £11.88 duty (i.e. £5.94 duty per launcher). Each launcher comes complete with two missiles. Spare missiles for the Air Burst rocket launcher can still be bought in the UK, at around £7.50 for two - about double their price in the US.