PSA Rock in 5.7x28 using a 5.56 silencer without a booster.

Published on September 3, 2022
Duration: 0:52

This review tests the Palmetto State Armory (PSA) Rock pistol in 5.7x28mm using a 5.56mm rated Griffin Armament Optimus Micro suppressor without a booster. The pistol, equipped with a Holosun 507K X2 optic, demonstrated reliable cycling and lock-back on an empty magazine, even with the suppressor's booster removed. This indicates good compatibility and robust performance for the PSA Rock in this configuration.

Quick Summary

The PSA Rock 5.7x28mm pistol was tested with a 5.56mm Griffin Armament Optimus Micro suppressor without a booster. It demonstrated reliable cycling and lock-back on an empty magazine, confirming compatibility and robust performance even in this configuration.

Chapters

  1. 00:00Introducing the PSA Rock 5.7x28mm
  2. 00:12Griffin Armament Optimus Micro Suppressor Details
  3. 00:29Booster-less Operation Explained
  4. 00:36Live Fire: PSA Rock Suppressed Test

Frequently Asked Questions

Can a 5.56mm suppressor be used on a 5.7x28mm pistol like the PSA Rock?

Yes, a 5.56mm rated suppressor, such as the Griffin Armament Optimus Micro, can be used on a 5.7x28mm pistol. It's crucial that the suppressor is rated for the higher pressures of 5.7x28mm, and not all .22 suppressors are suitable.

Does the PSA Rock 5.7x28mm require a booster for suppressed use?

In this test, the PSA Rock 5.7x28mm successfully cycled and locked back on an empty magazine using a 5.56mm suppressor without a booster (Nielsen device). This indicates the pistol's design may not always require one for reliable function with certain suppressors.

What optic was used on the PSA Rock in the video?

The PSA Rock pistol featured in this review was equipped with a Holosun 507K X2 optic. This is a popular micro red dot sight known for its compact size and performance.

Is the Griffin Armament Optimus Micro suppressor compatible with 5.7x28mm?

The Griffin Armament Optimus Micro suppressor, rated for 5.56mm, was tested on a 5.7x28mm PSA Rock and performed reliably. This suggests good compatibility, especially when run without a booster, though users should always confirm specific firearm and suppressor ratings.

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