STI 1911 5" RangeMaster Frame Kit

Material  

• 4140 steel, investment cast
• Heat treated to 28-32 Rockwell

Features  

• Oversize rails for precise slide fits
• Tang is cut .250" radius for beavertail grip safety
• 30 LPI checkered front strap
  

Ramp Cut - Wilson/Nowlin (only)
Dustcover - Extended to match 5" slide
Trigger Guard - Undercut, square trigger guard