Welcome to RSM Firearms

Northern Illinois' Friendliest Gun Shop

RSM Firearms

4054 Pearl St. Rd. Belvidere, IL 61008
(815) 566-4686
Hours: Mon/Thur/Fri 10am-5pm
Saturday 10am-3pm
Closed Tuesday, Wednesday & Sunday

Welcome to RSM Firearms, Northern Illinois’ Friendliest Gun Shop

Buy | Sell | Trade | Consign

Make sure that you sign up for our text club to stay up to date on our specials and get updates on our shipments for hard-to-find items.

Watch a Video from the NRA on Illinois Concealed Carry.

Illinois CCW

Utah CCW

NRA Classes

Basic Pistol Classes

Get Your Training With Us!