The CSR Precision Picatinny buttstock adapter will mate a wide variety of Picatinny mounted buttstocks to your SIG SG550, SG551, SG552, SG553, SG556 or SG522. You can now configure your rifle to you very own needs.
The adapter will be be CNC machined from aerospace grade aluminium and will be mil-spec type III class 2 anodized matte black.
Pre-order: new production batch is underway, shipping June 2024
US customers please purchase our items at JDI Firearms Inc.