This pen was kindly lent to me by 4M – thank you!

Measurements
Length (capped): 166.9 mm/6.57”
Length (uncapped): 155.0 mm/6.10”
Length (posted): N/A
Diameter (section): 10.8 – 12.4 mm/0.43” – 0.49”
Diameter (barrel): 13.8 – 12.7 mm/0.54” – 0.50”
Weight (all): 27.5 g
Weight (cap): 19.0 g
Weight (body): 8.5 g