Two Rivers Arms built this amazing East German MPi-KMS for me last summer. Needless to say I am impressed with the attention to detail, quality of the build and finish. I did replace the original worn wood lower with an original unissued piece and exchanged the plastic stock for an unissued, blued folder. Notice how well the TWA blue matches the original East German blue. Original matching numbers were found on the bolt, carrier and gas tube. Everything else that required numbers was matched. Many thanks to Steve and his crew!