September Coupon Codes — 20% Sinner Mass Closing!

Sinner Mass Fabrications is a full-service gun shop located in San Antonio, Texas. They offer services such as Cerakote, laser engraving, stippling, gunsmithing, and custom firearms. They also make handmade knives such as shivs, hit sticks, file pry, shank, and more. Additionally, they sell magazines and offer engraving services. There is a review on Reddit from a customer who had a neutral experience with Sinner Mass Fabrications. The customer had an AR that was not working properly and was interested in getting Cerakote work done, but ultimately did not get the work done.

Always make sure your coupon code for Sinner Mass is still valid by checking its expiration date before you make a purchase. Codes are often time-sensitive, so it's a good idea to verify their validity to avoid any issues at checkout.