Some months later production of the 12.7 mm version ceased.

There is a 7.62 mm version of the SL8 under development from H&K.

Beyond the format difference, the 70 mm and 35 mm versions vary substantially from each other.

However, there are a few scenes in the 35 mm version not found in the 70 mm.

As the harder-hitting 20 mm version of the same gun become available, a number of F-2s were retrofitted with it in the field.

The 7 mm version first appeared around 1980, with the .25 caliber appearing in 1987.

This is essentially a 8 mm (.323 in) necked-down version of the 9.3x64mm Brenneke.

An optional 14-round magazine is available for the 9 mm version.

The barrel was the same hammer-forged, heavy 7.62mm version fitted to the L42A1.

An 81 mm version called the W87 was also developed for export markets.