Sig 516 Extended Free Float M-LOK Handguard.

• Installs on factory barrel nut, not included with handguard
• Features a monolithic type continuous top rail.
• Features five anti rotation QD sockets for push button swivels
• Light weight with extremely solid lock up.
• Constructed from 6061 aluminum hard coat anodized
• Extends past the front sight tower for additional space for mounting accessories.
• Overall length of top rail 7.25” width 1.840” height 2.17”
• Weight: 8.3oz.
• Five slot M-LOK compatible rail piece included.
• 100 percent made in USA

WILL Work with Bayonet Lug Models and NON-Bayonet Lug Models