The Slide Fire® MOD Polymer Interface Block serves as a replacement for the interface block supplied with your SSAR-15® MOD stock. These interface blocks offer foolproof functionality for the life of your stock. Compatible with both the SSAR-15® MOD, the Slide Fire® Polymer Interface Block is a replacement for your current interface block. Block only, no hardware.

Compatible with: SSAR-15 MOD

Not Compatible with: SSAR-15 OGR and SSAR-15 SBS