Glock 21
GLOCK 21 Specifications
| Caliber | .45 ACP |
| Action | Safe Action (constant double action mode) |
| Overall length (slide) | 7.59 in. (193 mm) |
| Height, including magazine | 5.47 in. (139 mm) |
| Width | 1.27 in. (32.5 mm) |
| Barrel length | 4.60 in. (117 mm) |
| Sight radius | 6.77 in. (172 mm) |
| Rifling | Octagonal profile with right-hand twist of one turn in 15.75 in. (400 mm) |
| Weight, without magazine | 26.28 oz. (745 g) |
| Weight, empty magazine | 3.1 oz. (88 g) |
| Weight, full magazine | ~12 oz. (~340 g) |
| Magazine capacity | 13 rounds |
| Standard trigger pull | ~5.5 lbs. (~2.5 kg) |
| Trigger pull length | 0.5 in. (12.5 mm) |
| Number of safeties | 3 |