Great store to have locally, fair prices on everything, and they go above and beyond to help.

Awesome guy. I bought my first handgun from his store and the experience was dope. Ill be buying many more from him !

Great little gun shop. Has lots of gun parts for that AR15/10 build the prices are fair maybe not the cheapest but fair. The customer service is over the top. He has some guns for sale too. I highly recommend if your a gun guy check this place out!

Im a Gunsmith in billings and I come to Seth for most my parts anything from triggers optics even body armor

After trying every other gun shop in Billings (literally) I found myself at Castle arms. They were the only ones with what I was looking for and with the ammo I needed. I was impressed with the unique selection of ARs and even an AK. Plus just about any accessory you could think of is stocked. Very happy with my visit.

Friendly staff, huge selection, and had what I needed.

The owner is very knowledgeable and friendly. He has some good guns and a great selection of accessories.

Stellar guy, would recommend.

This guy is a ROCKSTAR 🤘

Very friendly and nice selection