JSD Supply

JSD Supply 80% lowers, inserts, frames and jigs are now available at Midwest Gun Works. JSD Specializes in 80% grip inserts for the Sig P320 builds as well as 80% lowers for AR-15 and AR-10 builds. JSD Supply are the experts in the field of do-it-yourself firearm builds, offering the best quality parts for any new firearm build.