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Replacement Mag Spring for PSA 5.7 Extension

This spring fits the Excess Arms +7 Mag extension for the PSA 5.7 Rock. The Magazine Spring is wound from high strength Music Wire to ensure unparalleled reliability without needlessly increasing loading force.

Replacement hardware kit for PSA 5.7 Extension

This hardware kit fits the Excess Arms +7 Mag extension for the PSA 5.7 Rock. Includes: 1 Allen Wrench 2 Set Screws

+7 round Mag Extension for PSA 5.7 Rock

Add 7 rounds of capacity to your PSA 5.7 Rock Magazine. Machined from 6061 aluminum and finished with Cerakote or Black Hardcote Anodizing. Extended length Magazine Spring is wound from high strength Music Wire to ensure unparalleled reliability without...

Rapid Disconnector for PSA 5.7 Rock

Rapid Disconnector for PSA Rock 5.7: Speed. Precision. Reliability. Elevate your 5.7x28mm experience. The Rapid Disconnector is a precision-engineered drop-in module designed to optimize trigger reset, allowing you to unlock the true performance...