HK21E, HK23E Compression Springs - Inner Buffer, Outer Buffer

H&K HK21E/23E Inner & Outer Buffer Compression Springs

An unissued set of inner and outer buffer compression springs for your HK21E/23E buffer, sourced directly from HK Germany.

Most HK21E/23E buffers in the U.S are first-generation, which use these exact springs. In contrast, second-generation buffers feature a helical and plate spring column (flat spring), which is not compatible with these replacements. If you're running a first-gen buffer, these are the correct replacement springs to keep your system functioning properly.

Compatible With:

• HK21E
• HK23E