Saiga 12's out of the box will shoot Buck Shot, Slugs and High Brass Bird Shot because that is what the gun is designed for.
There is a 2-300 round break in period before it will start to cycle the Low Brass Walmart "Value Pack" Remington and Federal Bird Shot.

This kit will help you run the Low Brass Bird Shot from the start.
The Kit includes
1- DPH Arms Improved Gas Plug Regulator that gives 6 hand adjustable gas settings over the factory 2
1- CSS Reduced Power Recoil Spring designed for all 2 3/4" shells
1- CSS Performance Puc is engineered to keep your gas system working in optimum performance

The combination of these 3 parts will help your gas system run the low brass shells unless you have improperly drilled gas ports.


CSS Performance Puc installs easily with the flat side towards the front of the gun and the "Tail" towards the back

Installation Instructions
1. Make sure firearm is unloaded.
2. Remove top cover from the firearm and pull out the recoil spring assembly.
3. Pull the front spring off the recoil assembly and replace with new front performance spring.
4. Completely unscrew the factory adjustment knob out of the gas block and push gas puc out through the front.

-Now is a great time to clean the gas block free of carbon build up and debris.
Also take a pic and make sure the gas ports are open inside the gas block.

5. Install CSS Performance Puc the flat side towards the front of the gun and the "Tail" towards the back.
6. Now install the new adjustment knob as it's instructions included with the plug.

Works on all Saiga 12,20 and 410 shotguns.