Magpul Industries, MBUS 3 Back-Up Front Sight, , Flip Up, Black Springfield Buffer retaining pin

Buffer retaining pin

a Trijicon SRO® mounting kit (AC32085) is required

Converts the Springfield Hellcat/RDP/PRO with RMSC Slide Cut to Holosun 407K/507K

HOLOSUN 510 OPEN REFLEX GREEN MULTI RETICLE W/HM3X COMBO

The MBUS 3 Front Sight includes tool-less elevation adjustments and a dual width enhanced front sight similar to the MBUS Pro

Magpul Industries, MBUS 3 Back-Up Front Sight, , Flip Up, Black Springfield Buffer retaining pinThe next evolution in Magpul's MBUS (Magpul Back Up Sight) line, the MBUS 3 incorporates the best features, strengths and value of their original MBUS and MBUS Pro Sights in a feature packed back up sight system. Significantly reduced in size from the MBUS, it sits at just 0. 44" high when folded and 1. 15" at its widest point. Its aesthetics are derived from the MBUS Pro, but the MBUS 3 Front Sight is constructed of their impact resistant polymer,