The M8 variation of the P7 has a larger trigger guard, lengthened trigger, heat shield, thumb-operated magazine release, bigger rear sight, and lanyard ring. They were produced from '83 until 2007.
Email for higher res pictures. Never been fired.

Barrel Length: 4.13"
OAL: 6.7"
Height: 5.1"
Width: 1.1"
Weight: 28 oz
Mags: Three 8 rnd mags (two with extension)
Sights: Fixed 3-dot
Also comes with: Original case, large case and tools.