Question: which glocks are 45 caliber?
Answer: Glock 21. Know what's great about the Glock 21? It has a 13+1 capacity (one in the chamber) for a . ... 
Glock 30. The Glock 30 is great for packing . 45 caliber power in a compact form factor. ... 
Glock 36. The Glock 36 is a subcompact . ... 
Glock 41 Gen4. The G41 is a competition-grade .