40 mm grenade launcher round components and ammunition tail units.

40 mm grenade launcher ammunition is a low-velocity round used at infantry level; its components both withstand the firing pressure and keep the projectile stable all the way to the target. The ammunition tail is the part that provides stabilisation in flight.
In low-velocity ammunition, weight distribution and symmetry are the main factors determining accuracy. Parts are grouped by weight tolerance; on the tail group, fin angles and symmetry are verified in the measurement laboratory.
| Calibre | 40 mm grenade launcher |
|---|---|
| Scope | Round components, ammunition tail unit |
| Inspection | Weight tolerance and symmetry checks |

