All SD Conversions

Explore All SD Conversions from Ronin Arms, based in Payson, AZ—your source for precision integrally suppressed upgrades. These conversions transform standard firearms into ultra-quiet SD (Schalldämpfer) systems using ported barrels and Defcon4 integral suppressors. Every conversion is handcrafted, TIG-welded, and tuned to run subsonic with standard 115gr 9mm ammo—no special loads needed.

Choose from multiple platforms including the AP5-SD Conversion, MPX SD Conversion, and DEFCON4 SD Conversion for AR9. Compact options like the AP5-SD-K and MP5 to MP5SD-K Conversion are also available.

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