Recent Entries

• The Differences Between Direct Gas Impingement and Zenith Firearms’ MRDS Platform’s Roller-Delayed Blowback

  by Zenith Firearms 6 hours ago

  The vast majority of AR style rifles, including AR pistols, or ARPs, are actuated by an operation known as direct gas impingement. Some, such as the MRDS platform used by Zenith Firearms in models like the ZF-56 and ZF-300, utilize a modern roller-delayed system, which gives the MRDS its n...
• Need a New MP5 Magazine? Here’s Where to Get It

  by Zenith Firearms Apr 25

  If there’s one MP5 accessory of which you should have a few spares on hand, it’s a mag. Without a compatible MP5 magazine, that SMG is little more than a glorified single-shot platform. Plus, on top of that, you can burn through a standard 15 or 30 round mag in all of a second and&n...
• Why a Roller Delayed PCC Might Be Better Than a Build with a Gas System

  by Zenith Firearms Apr 24

  There are three main action types you can choose from if you want to build a PCC. These are direct blowback, gas impingement, and roller delayed blowback. Gas impingement and roller delayed PCCs are more reliable than direct blowback models, and this short post will shed some light on the...