Skip to product information
1 of 9

Sherman Bros. Accessories



1 total reviews

Regular price $8.49
Regular price Sale price $8.49
Sale Sold out

9MM snap caps (dummy rounds) with 3D printed ball nose (FMJ style), brass casing and rubber primer. Includes 5rd 3D printed translucent cases for storage or a trip to the range. Real brass casings simulate the full weight of a live round. These snap caps have been gauge checked and conform to SAAMI specs.

Snap caps are great for dry firing, function testing and malfunction training. Load one randomly in your magazine while shooting at the range and practice clearing a malfunction. Cycle them through a firearm to function check.


This is a GOON DYNAMICS original product! Have your own 3D printer? Purchase the .STL files here:

View full details

Customer Reviews

Based on 1 review Write a review


Let's keep the printer running!

The Mission

We strive to provide custom design and fabrication at competitive prices.

The Legal

We will not sell 3D printed firearms or anything regulated by U.S. government agencies. You are responsible for understanding and following all local and federal laws. See Terms and Conditions section linked in the footer for more details.

The Resin

Traditional 3D printed resin is fragile and becomes brittle with prolonged UV exposure. Our 3D printed products are made with SirayaTech Build, which is a high-strength engineering resin designed for prototyping structural models. 'Build' offers impressive properties at 50 Mpa tensile strength, 8% elongation at break and a heat deflection rating of 165 degrees Fahrenheit. It will not become brittle with prolonged UV exposure and is also tappable. Our commercial products have all been tested for comptability and durability to ensure that you receive high quality accessories.

Return Policy

We accept returns! If you are not happy with your purchase, we will send replacement parts or provide a full refund. Please contact us with any questions you may have. See Return, Refund and Exchange Policy linked in the footer below for more details.