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

Measurements
Length (capped): 153.7 mm/6.05”
Length (uncapped): 134.6 mm/5.30”
Length (posted): N/A
Diameter (section): 11.0—12.0 mm/0.44—0.47”
Diameter (barrel): 9.0—15.9 mm/0.36—0.63”
Weight (all): 29.5 g
Weight (body): 21.0 g
Weight (cap): 8.5 g