Correct size can be used by others T91 GBBR products
Lightweight aluminum CNC hand guard body
The upper handguard uses 1913 Mil-Spc rail system
The lower handguard uses authorized M-lok rail system
All steel locking screws
Full Handguard adopts heat dissipation hole design
The full handguard securely attaches to the original front sign, gas block, barrel nut, handguard cap and upper receiver.