BPW Steel Mag Release Button for APFG MCX / SPEAR-LT / MPX GBB

For APFG MCX /SPEAR LT GBB series For APFG MPX GBB series NOT compatible with AR /M4 GBB model NOT compatible with APFG MCX SOCOM PDW GBB (M4 Lower model). Required to DIY ability Content ONE right side magazine button ONLY. The remaining left side lever / spring must be removed and replaced from original APFG MPX /MCX GBB Compatible with BPW MCX Steel Ambidextrous Magazine Release Lever ( Left Side )