Introducing: DB's MMR22 (MULTI-MODEL RECEIVER 22) This receiver is designed to work with the following 22LR parts kits: Rossi RS22 Mossberg 702 Plinkser Mossberg 715 (All Variants) Citadel TRAKR (All Variants) Magtech 7022 LBRY Tags: rossi; guncad; 3d printing; mossberg; 22lr