S-PRO is our next-level pistol conversion kit featuring a spring-loaded stabilizer (which can be converted to a buttstock by removing the included brace attachment) MLOK mounting options and broad compatibility. - S-Pro is compatible with Glock Canik & Walther PDP. Pre-order for SIG X Macro Large Frame Glock & Hellcat here with more to follow. The unit is designed to be modular and using it with another compatible gun will only require swapping a small adapter piece which will be sold separately. - S-PRO Key Features - Metal frame - MLOK-compatible front shroud - Push button release spring loaded stabilizer/buttstock - Modular unit swap out adapters to use the same platform for different pistols - No tools are required to install - Compatible with high-profile slide-mounted optics - S-Pro is compatible with the following PDP models: PDP Compact 4 PDP Compact 5 PDP Full Size 4.5 PDP Full Size 5 PDP Full-Size 4.5 PDP Full-Size 4 PDP PRO SD COMPACT 4.6 PDP Pro-E 4.5 PDP Pro-X PMM Compact 4.6 PDP Pro-X PMM Full-Size Walther PDP Full Size 5 WALTHER PDP PRO SD FULL SIZE 5.1 - The S-Pro is the first compact pistol stabilizer on the market designed for seamless compatibility across multiple pistols. Fully modular and customizable it supports suppressors compensators and slide-mounted optics. Installation is tool-free and requires no modifications to your pistol. The S-Pro is available in both brace and stock configurations. All S-Pros are shipped in brace configuration. The brace is removable and removing it converts it to a stock.