M4 - FAL FK FAB M4 Collapsible Buttstock System for FN FAL

Advantages:

• Four 1913 MIL-SPEC picatinny rails for versatile mounting options
• Side and under rail can be removed or repositioned on any of 7 positions
• Precision machined from 6061 T6 Billet aluminum for maximum durability
• Rugged construction will not bend or deform under any condition
• Field tested under extreme conditions for maximum performance
• Rail system firmly locks to the barrel nut and over the M4 upper rail
• Maintaining free floating barrel for optimal ballistics and accuracy
• Quick and easy installation, no Gunsmith required
• Slim profile for better grip and firearm handling

Compatibility:

• Carbine Length M16 models and variants with an upper picatinny rail
• Also available in the C version for models with a carry handle