The FAB Defense Vanguard AR (MPN FXVANARB) is an M-LOK handguard for carbine-length AR-15/M4 rifles without a gas block under the handguard.

Key Specifications

• M-LOK compatible for direct-attach M-LOK accessories or M-LOK-to-Picatinny rail sections
• Slim design with an integrated heat shield for thermal protection
• M-LOK slots at the 6 o’clock position for mounting forward grips
• M-LOK side slots at the 2, 3, 9, and 10 o’clock positions for additional accessories
• Two integrated QD sling swivel sockets
• Durable polymer construction
• Drop-in, no-gunsmithing installation
• Fits carbine-length AR-15/M4 models and variants without a gas block under the handguard

Frequently Asked Questions

Will this work with a gas block under the handguard?
No, FAB Defense built the Vanguard AR for carbine-length AR-15/M4 variants without a gas block in that space.

Does it need gunsmithing to install?
No, it’s a drop-in handguard with no gunsmithing required.

What sling options does it support?
Two integrated QD sling swivel sockets are built into the handguard.

Buy the FAB Defense Vanguard AR Handguard

Add M-LOK real estate and a heat shield to your carbine with this Vanguard handguard from FAB Defense. Ships fast from Lubbock, TX, part of our AR handguard lineup.