Since they are talking of guns, here is a picture of his guns (he had 2 glocks iirc)
View attachment 74059
cbs.com
For those not familiar with weapons, I may be able to help people understand the power of these weapons since I am familiar with guns since I have quite a few and enjoy target shooting.
The 40 caliber Glock handgun shown is using the .40 caliber shell and it is a relatively new caliber and was introduced to the market with the S&W cartridge which debuted January 17, 1990. The Glock is just the brand of the handgun and has been around longer than the shell size 40 caliber. Different manufactures make guns that shoot different calibers in all sizes.
The 40 caliber is a powerful round which is not much smaller than a .45 caliber. Most people have heard of the .45 Colt which is the type of gun most often seen in wild west movies. Almost every wild west movie you see has the .45 caliber.
The .40 caliber Glock is not much smaller in power or size. So it is a powerful handgun.
The AR rifle is a semi-automatic rifle that depending on the model you buy can shoot different types of rounds. I cant tell from the picture which round his is but they typically are made to fit the .223 round. Those are common so I suspect his was a .223 round but not sure because they do make them in different calibers.
The .223 round is a very fast bullet that does tremendous damage. It is a rather small diameter bullet but long in length. But it goes so fast at over 2000 feet per second that when it hits something, the damage is incredible.
The Remington 870 shown is a shotgun that shoots a large blast of small pellets. So you dont have to aim it carefully as the pellets spread out and will hit things even if not aimed just right. The pellets scatter around as it is shot and they also will do a lot of damage if most all the pellets hits its target.