HK G3 HK91 CETME MAG CATCH SPRING AND PADDLE BUSHING 2PK. THESE ARE NOS PARTS...2-MAG CATCH SPRINGS 2- MAG CATCH BUSHINGS.... Spring for magazine catch...... correct spring for all HK9X weapons including: HK91/G3, HK33/53/95, HK94/MP5, SP89/MP5K, Cetme/C308 and clones. Also correct for HK11/11E, HK21E/G8 and HK13E/23E magazine attachment unit or mag adapter...... bushing for paddle new. Genuine German HK production in unissued condition. These are full auto bushings but if modified can be used for semi-auto paddle installation.