About this 3D model

1. The mag_follower_v2 in the folder is compatible with both long and short magazines, and can be replaced with the old version of mag_follower without or with re-printing; 2. The extended magazine requires hardware: stainless steel compression spring 0.8x16x120 (pitch ≥ 12mm); 3. For aesthetic coordination, the extended magazine is designed with a capacity of 13-14 rounds, and 13 rounds is recommended.