Small, light, accurate and powerful: The GLOCK 27 is the backup weapon for all  situations. Because of its comfortable dimensions and the known advantages of  the GLOCK pistol family it is very popular by police on patrol duty, which is  why many law enforcement agencies issue this subcompact .40 pistol also as an  official backup pistol.
Technical  Specs:
CALIBER
.40
WEIGHT
560 g /  19.75 oz.
LOADED (~)
765 g / 26.98 oz. 
LENGTH
160  mm / 6.29 in.
HEIGHT
106 mm / 4.17 in. 
WIDTH
30 mm /  1.18 in.
BARREL HEIGHT
32 mm / 1.26 in.
BARREL  LENGTH
88 mm / 3.46 in. 
BARREL RIFLING
right hand,  hexagonal
LENGTH OF TWIST
250 mm / 9.84 in. 
TRIGGER  PULL
2.5 kg / 5.5 lbs.
TRIGGER TRAVEL
12.5 mm / 0.5 in.  
LINE OF SIGHT
144 mm / 5.67 in.