Fore grip protection from railing.

AIM Sports Inc Weaver/Picatinny Rail Vertical Foregrip

MAGPUL (AFG2) ANGLED FOREGRIP FOR PICATINNEY RAIL- BLACK

MAGPUL PICATINNY AFG2 ANGLED FORE GRIP

Mid-Evil Industries Gen 2 360° Rotating Fore Grip - Firearms News

Hollow Folding Vertical Picatinny Foregrip

MAGPUL MOE RVG - Rail Vertical Grip for KSG - M*CARBO

M-LOK® AFG® - Angled Fore Grip - CAT Outdoors

Magpul MAG411-BLK AFG Angled Fore Grip Black - Black Sheep Sporting Goods

MagPul MOE RVG Rail Vertical Forend Grip

Choosing The Right AR Rail Grip For You - RailScales LLC

Choosing The Right AR Rail Grip For You - RailScales LLC

NcSTAR Short Vertical Grip - Universal Mount (M-LOK, Keymod, Rail) – Airsoft Atlanta