Product Description 
 FM-9 9mm Barrels are precision-machined for impressive accuracy and match-grade performance. 
 • 1-10" twist stabilizes all 9mm bullet weights 
 • Precision-machined from high-grade, 41V50 chrome-moly-vanadium steel alloy 
 • ½"-36 threaded muzzle ready for the comp/hider/brake/suppressor of your choice! 
 • Button-rifled for impressive accuracy and match-grade performance 
 • Works with all Colt and Glock® style 9mm uppers 
 • Integrated feed ramps 
 • Salt bath Nitride QPQ/Melonite finish for superb resistance to wear and corrosion 
 • Cut to 9mm SAMMI specs